74941690 has 32 divisors (see below), whose sum is σ = 138695040. Its totient is φ = 29139264.

The previous prime is 74941679. The next prime is 74941709. The reversal of 74941690 is 9614947.

It is a happy number.

It is a super-2 number, since 2×74941690² = 11232513800112200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170491 + ... + 170929.

It is an arithmetic number, because the mean of its divisors is an integer number (4334220).

Almost surely, 2^74941690 is an apocalyptic number.

74941690 is a deficient number, since it is larger than the sum of its proper divisors (63753350).

74941690 is a wasteful number, since it uses less digits than its factorization.

74941690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

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

The square root of 74941690 is about 8656.8868538292. The cubic root of 74941690 is about 421.6070141850.

The spelling of 74941690 in words is "seventy-four million, nine hundred forty-one thousand, six hundred ninety".