73138492 has 48 divisors (see below), whose sum is σ = 151377408. Its totient is φ = 30265920.

The previous prime is 73138489. The next prime is 73138519. The reversal of 73138492 is 29483137.

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235017 + ... + 235327.

It is an arithmetic number, because the mean of its divisors is an integer number (3153696).

Almost surely, 2^73138492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73138492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75688704).

73138492 is an abundant number, since it is smaller than the sum of its proper divisors (78238916).

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

73138492 is a wasteful number, since it uses less digits than its factorization.

73138492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 584 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 73138492 is about 8552.1045363115. The cubic root of 73138492 is about 418.1980472192.

The spelling of 73138492 in words is "seventy-three million, one hundred thirty-eight thousand, four hundred ninety-two".