125452440 has 96 divisors (see below), whose sum is σ = 429202800. Its totient is φ = 31691520.

The previous prime is 125452427. The next prime is 125452451. The reversal of 125452440 is 44254521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2331 + ... + 16010.

Almost surely, 2^125452440 is an apocalyptic number.

125452440 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 125452440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214601400).

125452440 is an abundant number, since it is smaller than the sum of its proper divisors (303750360).

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

125452440 is a wasteful number, since it uses less digits than its factorization.

125452440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18377 (or 18370 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 125452440 is about 11200.5553433747. Note that the first 3 decimals coincide. The cubic root of 125452440 is about 500.6025269642.

The spelling of 125452440 in words is "one hundred twenty-five million, four hundred fifty-two thousand, four hundred forty".