73737138 has 48 divisors (see below), whose sum is σ = 158556960. Its totient is φ = 22851072.

The previous prime is 73737107. The next prime is 73737161. The reversal of 73737138 is 83173737.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 73737096 and 73737105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127506 + ... + 128082.

It is an arithmetic number, because the mean of its divisors is an integer number (3303270).

Almost surely, 2^73737138 is an apocalyptic number.

73737138 is an abundant number, since it is smaller than the sum of its proper divisors (84819822).

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

73737138 is a wasteful number, since it uses less digits than its factorization.

73737138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 660 counting only the distinct ones).

The product of its digits is 74088, while the sum is 39.

The square root of 73737138 is about 8587.0331314139. The cubic root of 73737138 is about 419.3359460954.

The spelling of 73737138 in words is "seventy-three million, seven hundred thirty-seven thousand, one hundred thirty-eight".