265428988 has 18 divisors (see below), whose sum is σ = 510567848. Its totient is φ = 120649320.

The previous prime is 265428983. The next prime is 265428991. The reversal of 265428988 is 889824562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265428983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 273720 + ... + 274687.

Almost surely, 2^265428988 is an apocalyptic number.

It is an amenable number.

265428988 is a deficient number, since it is larger than the sum of its proper divisors (245138860).

265428988 is a wasteful number, since it uses less digits than its factorization.

265428988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548433 (or 548420 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The square root of 265428988 is about 16291.9915295829. The cubic root of 265428988 is about 642.6622404660.

It can be divided in two parts, 26542898 and 8, that multiplied together give a square (212343184 = 14572²).

The spelling of 265428988 in words is "two hundred sixty-five million, four hundred twenty-eight thousand, nine hundred eighty-eight".