1245178480 has 240 divisors, whose sum is σ = 3659765760. Its totient is φ = 385661952.

The previous prime is 1245178453. The next prime is 1245178483. The reversal of 1245178480 is 848715421.

It is a super-2 number, since 2×1245178480² = 3100938894110220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245178483) 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, 5583649 + ... + 5583871.

It is an arithmetic number, because the mean of its divisors is an integer number (15249024).

Almost surely, 2^1245178480 is an apocalyptic number.

1245178480 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 1245178480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829882880).

1245178480 is an abundant number, since it is smaller than the sum of its proper divisors (2414587280).

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

1245178480 is a wasteful number, since it uses less digits than its factorization.

1245178480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 1245178480 is about 35287.0865898561. The cubic root of 1245178480 is about 1075.8305404234.

The spelling of 1245178480 in words is "one billion, two hundred forty-five million, one hundred seventy-eight thousand, four hundred eighty".