74503530 has 32 divisors (see below), whose sum is σ = 198676800. Its totient is φ = 19867536.

The previous prime is 74503511. The next prime is 74503549. The reversal of 74503530 is 3530547.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74503511) and next prime (74503549).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 74503494 and 74503503.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 137700 + ... + 138239.

It is an arithmetic number, because the mean of its divisors is an integer number (6208650).

Almost surely, 2^74503530 is an apocalyptic number.

74503530 is an abundant number, since it is smaller than the sum of its proper divisors (124173270).

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

74503530 is a wasteful number, since it uses less digits than its factorization.

74503530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275955 (or 275949 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 74503530 is about 8631.5427358034. The cubic root of 74503530 is about 420.7837406733.

The spelling of 74503530 in words is "seventy-four million, five hundred three thousand, five hundred thirty".