38130516 has 18 divisors (see below), whose sum is σ = 96385562. Its totient is φ = 12710160.

The previous prime is 38130509. The next prime is 38130553. The reversal of 38130516 is 61503183.

It can be written as a sum of positive squares in only one way, i.e., 33593616 + 4536900 = 5796^2 + 2130^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 38130516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 529555 + ... + 529626.

Almost surely, 2^38130516 is an apocalyptic number.

38130516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38130516 is an abundant number, since it is smaller than the sum of its proper divisors (58255046).

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

38130516 is a wasteful number, since it uses less digits than its factorization.

38130516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059191 (or 1059186 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 38130516 is about 6174.9911740828. The cubic root of 38130516 is about 336.5820057467.

Adding to 38130516 its reverse (61503183), we get a palindrome (99633699).

The spelling of 38130516 in words is "thirty-eight million, one hundred thirty thousand, five hundred sixteen".