73840372 has 6 divisors (see below), whose sum is σ = 129220658. Its totient is φ = 36920184.

The previous prime is 73840339. The next prime is 73840381. The reversal of 73840372 is 27304837.

It can be written as a sum of positive squares in only one way, i.e., 67469796 + 6370576 = 8214^2 + 2524^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9230043 + ... + 9230050.

Almost surely, 2^73840372 is an apocalyptic number.

It is an amenable number.

73840372 is a deficient number, since it is larger than the sum of its proper divisors (55380286).

73840372 is a wasteful number, since it uses less digits than its factorization.

73840372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18460097 (or 18460095 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 73840372 is about 8593.0420690231. The cubic root of 73840372 is about 419.5315487531.

The spelling of 73840372 in words is "seventy-three million, eight hundred forty thousand, three hundred seventy-two".