74497620 has 24 divisors (see below), whose sum is σ = 208593504. Its totient is φ = 19866016.

The previous prime is 74497603. The next prime is 74497627. The reversal of 74497620 is 2679447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74497627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620754 + ... + 620873.

It is an arithmetic number, because the mean of its divisors is an integer number (8691396).

Almost surely, 2^74497620 is an apocalyptic number.

It is an amenable number.

74497620 is an abundant number, since it is smaller than the sum of its proper divisors (134095884).

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

74497620 is a wasteful number, since it uses less digits than its factorization.

74497620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241639 (or 1241637 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 74497620 is about 8631.2003800167. The cubic root of 74497620 is about 420.7726141416.

The spelling of 74497620 in words is "seventy-four million, four hundred ninety-seven thousand, six hundred twenty".