74351818 has 8 divisors (see below), whose sum is σ = 112342212. Its totient is φ = 36904416.

The previous prime is 74351813. The next prime is 74351821. The reversal of 74351818 is 81815347.

It can be written as a sum of positive squares in 2 ways, for example, as 73667889 + 683929 = 8583^2 + 827^2 .

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

It is not an unprimeable number, because it can be changed into a prime (74351813) 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, 135405 + ... + 135952.

Almost surely, 2^74351818 is an apocalyptic number.

74351818 is a deficient number, since it is larger than the sum of its proper divisors (37990394).

74351818 is a wasteful number, since it uses less digits than its factorization.

74351818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271496.

The product of its digits is 26880, while the sum is 37.

The square root of 74351818 is about 8622.7500253689. The cubic root of 74351818 is about 420.4979317407.

The spelling of 74351818 in words is "seventy-four million, three hundred fifty-one thousand, eight hundred eighteen".