16313938 has 4 divisors (see below), whose sum is σ = 24470910. Its totient is φ = 8156968.

The previous prime is 16313933. The next prime is 16313953. The reversal of 16313938 is 83931361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11309769 + 5004169 = 3363^2 + 2237^2 .

It is a super-2 number, since 2×16313938² = 532289146135688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16313933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4078483 + ... + 4078486.

Almost surely, 2^16313938 is an apocalyptic number.

16313938 is a deficient number, since it is larger than the sum of its proper divisors (8156972).

16313938 is an equidigital number, since it uses as much as digits as its factorization.

16313938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156971.

The product of its digits is 11664, while the sum is 34.

The square root of 16313938 is about 4039.0516213587. The cubic root of 16313938 is about 253.6216181852.

The spelling of 16313938 in words is "sixteen million, three hundred thirteen thousand, nine hundred thirty-eight".