73920430 has 32 divisors (see below), whose sum is σ = 139438080. Its totient is φ = 28179360.

The previous prime is 73920401. The next prime is 73920433. The reversal of 73920430 is 3402937.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73920433) 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, 18991 + ... + 22549.

It is an arithmetic number, because the mean of its divisors is an integer number (4357440).

Almost surely, 2^73920430 is an apocalyptic number.

73920430 is a deficient number, since it is larger than the sum of its proper divisors (65517650).

73920430 is a wasteful number, since it uses less digits than its factorization.

73920430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 73920430 is about 8597.6991108087. The cubic root of 73920430 is about 419.6831132012.

The spelling of 73920430 in words is "seventy-three million, nine hundred twenty thousand, four hundred thirty".