318465990 has 48 divisors (see below), whose sum is σ = 830466000. Its totient is φ = 84672576.

The previous prime is 318465989. The next prime is 318465991. The reversal of 318465990 is 99564813.

It is a happy number.

318465990 is a `hidden beast` number, since 3 + 18 + 46 + 599 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (318465989) and next prime (318465991).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318465991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26341 + ... + 36479.

It is an arithmetic number, because the mean of its divisors is an integer number (17301375).

Almost surely, 2^318465990 is an apocalyptic number.

318465990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

318465990 is an abundant number, since it is smaller than the sum of its proper divisors (512000010).

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

318465990 is a wasteful number, since it uses less digits than its factorization.

318465990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501 (or 10498 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 318465990 is about 17845.6154278859. The cubic root of 318465990 is about 682.8956607725.

The spelling of 318465990 in words is "three hundred eighteen million, four hundred sixty-five thousand, nine hundred ninety".