1245450 has 72 divisors (see below), whose sum is σ = 3401568. Its totient is φ = 300960.

The previous prime is 1245449. The next prime is 1245451. The reversal of 1245450 is 545421.

It is an interprime number because it is at equal distance from previous prime (1245449) and next prime (1245451).

It is a super-2 number, since 2×1245450² = 3102291405000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 54139 + ... + 54161.

It is an arithmetic number, because the mean of its divisors is an integer number (47244).

2^1245450 is an apocalyptic number.

1245450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700784).

1245450 is an abundant number, since it is smaller than the sum of its proper divisors (2156118).

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

1245450 is a wasteful number, since it uses less digits than its factorization.

1245450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1245450 is about 1115.9973118247. The cubic root of 1245450 is about 107.5908732234.

The spelling of 1245450 in words is "one million, two hundred forty-five thousand, four hundred fifty".