74326820 has 12 divisors (see below), whose sum is σ = 156086364. Its totient is φ = 29730720.

The previous prime is 74326799. The next prime is 74326831. The reversal of 74326820 is 2862347.

It can be written as a sum of positive squares in 2 ways, for example, as 47224384 + 27102436 = 6872^2 + 5206^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858151 + ... + 1858190.

It is an arithmetic number, because the mean of its divisors is an integer number (13007197).

Almost surely, 2^74326820 is an apocalyptic number.

It is an amenable number.

74326820 is an abundant number, since it is smaller than the sum of its proper divisors (81759544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74326820 is a wasteful number, since it uses less digits than its factorization.

74326820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716350 (or 3716348 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 74326820 is about 8621.3003659541. The cubic root of 74326820 is about 420.4508009247.

The spelling of 74326820 in words is "seventy-four million, three hundred twenty-six thousand, eight hundred twenty".