38426690 has 8 divisors (see below), whose sum is σ = 69168060. Its totient is φ = 15370672.

The previous prime is 38426677. The next prime is 38426699. The reversal of 38426690 is 9662483.

It can be written as a sum of positive squares in 2 ways, for example, as 38353249 + 73441 = 6193^2 + 271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×38426690² = 2953221008712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38426699) 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, 1921325 + ... + 1921344.

Almost surely, 2^38426690 is an apocalyptic number.

38426690 is a deficient number, since it is larger than the sum of its proper divisors (30741370).

38426690 is a wasteful number, since it uses less digits than its factorization.

38426690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842676.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 38426690 is about 6198.9265199710. The cubic root of 38426690 is about 337.4512119692.

The spelling of 38426690 in words is "thirty-eight million, four hundred twenty-six thousand, six hundred ninety".