74300820 has 48 divisors (see below), whose sum is σ = 226957248. Its totient is φ = 18012160.

The previous prime is 74300819. The next prime is 74300827. The reversal of 74300820 is 2800347.

It is a super-2 number, since 2×74300820² = 11041223705344800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74300827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55629 + ... + 56948.

It is an arithmetic number, because the mean of its divisors is an integer number (4728276).

Almost surely, 2^74300820 is an apocalyptic number.

It is an amenable number.

74300820 is an abundant number, since it is smaller than the sum of its proper divisors (152656428).

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

74300820 is a wasteful number, since it uses less digits than its factorization.

74300820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112600 (or 112598 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 74300820 is about 8619.7923408862. The cubic root of 74300820 is about 420.4017697417.

The spelling of 74300820 in words is "seventy-four million, three hundred thousand, eight hundred twenty".