38145516 has 12 divisors (see below), whose sum is σ = 89006232. Its totient is φ = 12715168.

The previous prime is 38145511. The next prime is 38145517. The reversal of 38145516 is 61554183.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (38145511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589385 + ... + 1589408.

It is an arithmetic number, because the mean of its divisors is an integer number (7417186).

Almost surely, 2^38145516 is an apocalyptic number.

It is an amenable number.

38145516 is an abundant number, since it is smaller than the sum of its proper divisors (50860716).

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

38145516 is a wasteful number, since it uses less digits than its factorization.

38145516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178800 (or 3178798 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 38145516 is about 6176.2056312918. The cubic root of 38145516 is about 336.6261354773.

Adding to 38145516 its reverse (61554183), we get a palindrome (99699699).

The spelling of 38145516 in words is "thirty-eight million, one hundred forty-five thousand, five hundred sixteen".