74452020 has 48 divisors (see below), whose sum is σ = 211413888. Its totient is φ = 19573120.

The previous prime is 74452003. The next prime is 74452031. The reversal of 74452020 is 2025447.

It is a congruent number.

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, 4479 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (4404456).

Almost surely, 2^74452020 is an apocalyptic number.

It is an amenable number.

74452020 is an abundant number, since it is smaller than the sum of its proper divisors (136961868).

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

74452020 is a wasteful number, since it uses less digits than its factorization.

74452020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17560 (or 17558 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 74452020 is about 8628.5583963951. The cubic root of 74452020 is about 420.6867449672.

Adding to 74452020 its reverse (2025447), we get a palindrome (76477467).

The spelling of 74452020 in words is "seventy-four million, four hundred fifty-two thousand, twenty".