73980428 has 6 divisors (see below), whose sum is σ = 129465756. Its totient is φ = 36990212.

The previous prime is 73980377. The next prime is 73980497. The reversal of 73980428 is 82408937.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9247550 + ... + 9247557.

It is an arithmetic number, because the mean of its divisors is an integer number (21577626).

Almost surely, 2^73980428 is an apocalyptic number.

It is an amenable number.

73980428 is a deficient number, since it is larger than the sum of its proper divisors (55485328).

73980428 is a wasteful number, since it uses less digits than its factorization.

73980428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18495111 (or 18495109 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 73980428 is about 8601.1875924200. The cubic root of 73980428 is about 419.7966286753.

The spelling of 73980428 in words is "seventy-three million, nine hundred eighty thousand, four hundred twenty-eight".