74618838 has 48 divisors (see below), whose sum is σ = 187549440. Its totient is φ = 20999088.

The previous prime is 74618837. The next prime is 74618857. The reversal of 74618838 is 83881647.

It is a junction number, because it is equal to n+sod(n) for n = 74618793 and 74618802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74618837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4023 + ... + 12861.

It is an arithmetic number, because the mean of its divisors is an integer number (3907280).

Almost surely, 2^74618838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74618838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93774720).

74618838 is an abundant number, since it is smaller than the sum of its proper divisors (112930602).

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

74618838 is a wasteful number, since it uses less digits than its factorization.

74618838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921 (or 8918 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 74618838 is about 8638.2196082295. The cubic root of 74618838 is about 421.0007090146. Note that the first 3 decimals are identical.

The spelling of 74618838 in words is "seventy-four million, six hundred eighteen thousand, eight hundred thirty-eight".