465154640 has 20 divisors (see below), whose sum is σ = 1081484724. Its totient is φ = 186061824.

The previous prime is 465154633. The next prime is 465154667. The reversal of 465154640 is 46451564.

It can be written as a sum of positive squares in 2 ways, for example, as 96668224 + 368486416 = 9832^2 + 19196^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×465154640² = 432737678227059200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 465154640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2907137 + ... + 2907296.

Almost surely, 2^465154640 is an apocalyptic number.

465154640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

465154640 is an abundant number, since it is smaller than the sum of its proper divisors (616330084).

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

465154640 is a wasteful number, since it uses less digits than its factorization.

465154640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814446 (or 5814440 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 465154640 is about 21567.4439839310. The cubic root of 465154640 is about 774.8169612827.

The spelling of 465154640 in words is "four hundred sixty-five million, one hundred fifty-four thousand, six hundred forty".