1245437460 has 144 divisors (see below), whose sum is σ = 4052280960. Its totient is φ = 308655360.

The previous prime is 1245437447. The next prime is 1245437461. The reversal of 1245437460 is 647345421.

1245437460 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1245437460² = 3102228933542503200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245437461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177825 + ... + 184695.

It is an arithmetic number, because the mean of its divisors is an integer number (28140840).

Almost surely, 2^1245437460 is an apocalyptic number.

1245437460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245437460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026140480).

1245437460 is an abundant number, since it is smaller than the sum of its proper divisors (2806843500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245437460 is a wasteful number, since it uses less digits than its factorization.

1245437460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958 (or 6953 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 1245437460 is about 35290.7560134379. The cubic root of 1245437460 is about 1075.9051212389.

The spelling of 1245437460 in words is "one billion, two hundred forty-five million, four hundred thirty-seven thousand, four hundred sixty".