265436940 has 48 divisors (see below), whose sum is σ = 744049152. Its totient is φ = 70704576.

The previous prime is 265436939. The next prime is 265437017. The reversal of 265436940 is 49634562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69357 + ... + 73083.

It is an arithmetic number, because the mean of its divisors is an integer number (15501024).

Almost surely, 2^265436940 is an apocalyptic number.

265436940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265436940 is an abundant number, since it is smaller than the sum of its proper divisors (478612212).

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

265436940 is a wasteful number, since it uses less digits than its factorization.

265436940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 265436940 is about 16292.2355740396. The cubic root of 265436940 is about 642.6686582517.

The spelling of 265436940 in words is "two hundred sixty-five million, four hundred thirty-six thousand, nine hundred forty".