38343988 has 18 divisors (see below), whose sum is σ = 69051206. Its totient is φ = 18617184.

The previous prime is 38343983. The next prime is 38343997. The reversal of 38343988 is 88934383.

It can be written as a sum of positive squares in 3 ways, for example, as 25684624 + 12659364 = 5068^2 + 3558^2 .

It is a super-2 number, since 2×38343988² = 2940522831488288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38343983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75078 + ... + 75586.

Almost surely, 2^38343988 is an apocalyptic number.

It is an amenable number.

38343988 is a deficient number, since it is larger than the sum of its proper divisors (30707218).

38343988 is an equidigital number, since it uses as much as digits as its factorization.

38343988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 548 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 38343988 is about 6192.2522558436. The cubic root of 38343988 is about 337.2089503602.

The spelling of 38343988 in words is "thirty-eight million, three hundred forty-three thousand, nine hundred eighty-eight".