38190690 has 40 divisors (see below), whose sum is σ = 102692700. Its totient is φ = 10183968.

The previous prime is 38190689. The next prime is 38190727. The reversal of 38190690 is 9609183.

38190690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31236921 + 6953769 = 5589^2 + 2637^2 .

It is a super-2 number, since 2×38190690² = 2917057605352200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22765 + ... + 24384.

Almost surely, 2^38190690 is an apocalyptic number.

38190690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38190690 is an abundant number, since it is smaller than the sum of its proper divisors (64502010).

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

38190690 is a wasteful number, since it uses less digits than its factorization.

38190690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47168 (or 47159 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 38190690 is about 6179.8616489368. The cubic root of 38190690 is about 336.7589667306.

The spelling of 38190690 in words is "thirty-eight million, one hundred ninety thousand, six hundred ninety".