465151640 has 32 divisors (see below), whose sum is σ = 1070934480. Its totient is φ = 181732992.

The previous prime is 465151639. The next prime is 465151651. The reversal of 465151640 is 46151564.

It is a junction number, because it is equal to n+sod(n) for n = 465151597 and 465151606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133499 + ... + 136938.

Almost surely, 2^465151640 is an apocalyptic number.

465151640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

465151640 is an abundant number, since it is smaller than the sum of its proper divisors (605782840).

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

465151640 is a wasteful number, since it uses less digits than its factorization.

465151640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270491 (or 270487 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 465151640 is about 21567.3744345481. The cubic root of 465151640 is about 774.8152955600.

The spelling of 465151640 in words is "four hundred sixty-five million, one hundred fifty-one thousand, six hundred forty".