74138536 has 32 divisors (see below), whose sum is σ = 143447040. Its totient is φ = 35900928.

The previous prime is 74138531. The next prime is 74138539. The reversal of 74138536 is 63583147.

It is a junction number, because it is equal to n+sod(n) for n = 74138495 and 74138504.

It is not an unprimeable number, because it can be changed into a prime (74138531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42840 + ... + 44536.

It is an arithmetic number, because the mean of its divisors is an integer number (4482720).

Almost surely, 2^74138536 is an apocalyptic number.

It is an amenable number.

74138536 is a deficient number, since it is larger than the sum of its proper divisors (69308504).

74138536 is a wasteful number, since it uses less digits than its factorization.

74138536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1869 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 74138536 is about 8610.3737433401. The cubic root of 74138536 is about 420.0954733825.

The spelling of 74138536 in words is "seventy-four million, one hundred thirty-eight thousand, five hundred thirty-six".