73740628 has 24 divisors (see below), whose sum is σ = 147149352. Its totient is φ = 32031744.

The previous prime is 73740607. The next prime is 73740637. The reversal of 73740628 is 82604737.

It can be written as a sum of positive squares in 4 ways, for example, as 501264 + 73239364 = 708^2 + 8558^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 40825 + ... + 42592.

It is an arithmetic number, because the mean of its divisors is an integer number (6131223).

Almost surely, 2^73740628 is an apocalyptic number.

It is an amenable number.

73740628 is a deficient number, since it is larger than the sum of its proper divisors (73408724).

73740628 is a wasteful number, since it uses less digits than its factorization.

73740628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83451 (or 83449 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 73740628 is about 8587.2363423863. The cubic root of 73740628 is about 419.3425617547.

The spelling of 73740628 in words is "seventy-three million, seven hundred forty thousand, six hundred twenty-eight".