73730388 has 24 divisors (see below), whose sum is σ = 172184992. Its totient is φ = 24555744.

The previous prime is 73730329. The next prime is 73730401. The reversal of 73730388 is 88303737.

It is a super-2 number, since 2×73730388² = 10872340229261088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19206 + ... + 22722.

Almost surely, 2^73730388 is an apocalyptic number.

It is an amenable number.

73730388 is an abundant number, since it is smaller than the sum of its proper divisors (98454604).

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

73730388 is a wasteful number, since it uses less digits than its factorization.

73730388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5269 counting only the distinct ones).

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

The square root of 73730388 is about 8586.6400879506. The cubic root of 73730388 is about 419.3231501733.

It can be divided in two parts, 737 and 30388, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 73730388 in words is "seventy-three million, seven hundred thirty thousand, three hundred eighty-eight".