465515990 has 16 divisors (see below), whose sum is σ = 843268752. Its totient is φ = 185019744.

The previous prime is 465515977. The next prime is 465515993. The reversal of 465515990 is 99515564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465515993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146684 + ... + 149823.

It is an arithmetic number, because the mean of its divisors is an integer number (52704297).

Almost surely, 2^465515990 is an apocalyptic number.

465515990 is a deficient number, since it is larger than the sum of its proper divisors (377752762).

465515990 is a wasteful number, since it uses less digits than its factorization.

465515990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296671.

The product of its (nonzero) digits is 243000, while the sum is 44.

The square root of 465515990 is about 21575.8195672841. The cubic root of 465515990 is about 775.0175452150.

The spelling of 465515990 in words is "four hundred sixty-five million, five hundred fifteen thousand, nine hundred ninety".