74862138 has 32 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 22741056.

The previous prime is 74862131. The next prime is 74862149. The reversal of 74862138 is 83126847.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 74862096 and 74862105.

It is not an unprimeable number, because it can be changed into a prime (74862131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (5103000).

Almost surely, 2^74862138 is an apocalyptic number.

74862138 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 74862138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81648000).

74862138 is an abundant number, since it is smaller than the sum of its proper divisors (88433862).

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

74862138 is a wasteful number, since it uses less digits than its factorization.

74862138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12246.

The product of its digits is 64512, while the sum is 39.

The square root of 74862138 is about 8652.2909105046. The cubic root of 74862138 is about 421.4577801345.

The spelling of 74862138 in words is "seventy-four million, eight hundred sixty-two thousand, one hundred thirty-eight".