38090642 has 8 divisors (see below), whose sum is σ = 60496956. Its totient is φ = 17924992.

The previous prime is 38090641. The next prime is 38090653. The reversal of 38090642 is 24609083.

It can be written as a sum of positive squares in 2 ways, for example, as 33884041 + 4206601 = 5821^2 + 2051^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 38090599 and 38090608.

It is not an unprimeable number, because it can be changed into a prime (38090641) 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, 560123 + ... + 560190.

Almost surely, 2^38090642 is an apocalyptic number.

38090642 is a deficient number, since it is larger than the sum of its proper divisors (22406314).

38090642 is a wasteful number, since it uses less digits than its factorization.

38090642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120332.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 38090642 is about 6171.7616609846. The cubic root of 38090642 is about 336.4646408536.

The spelling of 38090642 in words is "thirty-eight million, ninety thousand, six hundred forty-two".