16313004 has 54 divisors (see below), whose sum is σ = 42508284. Its totient is φ = 5274720.

The previous prime is 16312991. The next prime is 16313021. The reversal of 16313004 is 40031361.

16313004 is a `hidden beast` number, since 1 + 631 + 30 + 0 + 4 = 666.

It is a super-2 number, since 2×16313004² = 532228199008032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49119 + ... + 49449.

Almost surely, 2^16313004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16313004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21254142).

16313004 is an abundant number, since it is smaller than the sum of its proper divisors (26195280).

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

16313004 is a wasteful number, since it uses less digits than its factorization.

16313004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 16313004 is about 4038.9359985026. The cubic root of 16313004 is about 253.6167780067.

Adding to 16313004 its reverse (40031361), we get a palindrome (56344365).

The spelling of 16313004 in words is "sixteen million, three hundred thirteen thousand, four".