265428972 has 72 divisors (see below), whose sum is σ = 697132800. Its totient is φ = 85079808.

The previous prime is 265428971. The next prime is 265428983. The reversal of 265428972 is 279824562.

265428972 is a `hidden beast` number, since 26 + 542 + 89 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (265428971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117429 + ... + 119667.

It is an arithmetic number, because the mean of its divisors is an integer number (9682400).

Almost surely, 2^265428972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265428972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348566400).

265428972 is an abundant number, since it is smaller than the sum of its proper divisors (431703828).

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

265428972 is a wasteful number, since it uses less digits than its factorization.

265428972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375 (or 2370 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 265428972 is about 16291.9910385441. The cubic root of 265428972 is about 642.6622275528.

It can be divided in two parts, 2654 and 28972, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 265428972 in words is "two hundred sixty-five million, four hundred twenty-eight thousand, nine hundred seventy-two".