76638190 has 16 divisors (see below), whose sum is σ = 138121200. Its totient is φ = 30616960.

The previous prime is 76638179. The next prime is 76638197. The reversal of 76638190 is 9183667.

It is a super-2 number, since 2×76638190² = 11746824332952200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76638197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4461 + ... + 13159.

It is an arithmetic number, because the mean of its divisors is an integer number (8632575).

Almost surely, 2^76638190 is an apocalyptic number.

76638190 is a deficient number, since it is larger than the sum of its proper divisors (61483010).

76638190 is a wasteful number, since it uses less digits than its factorization.

76638190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 76638190 is about 8754.3240744217. The cubic root of 76638190 is about 424.7646955822.

The spelling of 76638190 in words is "seventy-six million, six hundred thirty-eight thousand, one hundred ninety".