74271738 has 16 divisors (see below), whose sum is σ = 155002176. Its totient is φ = 23680800.

The previous prime is 74271727. The next prime is 74271739. The reversal of 74271738 is 83717247.

It is a junction number, because it is equal to n+sod(n) for n = 74271696 and 74271705.

It is not an unprimeable number, because it can be changed into a prime (74271739) 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, 268963 + ... + 269238.

It is an arithmetic number, because the mean of its divisors is an integer number (9687636).

Almost surely, 2^74271738 is an apocalyptic number.

74271738 is an abundant number, since it is smaller than the sum of its proper divisors (80730438).

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

74271738 is a wasteful number, since it uses less digits than its factorization.

74271738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538229.

The product of its digits is 65856, while the sum is 39.

The square root of 74271738 is about 8618.1052441938. The cubic root of 74271738 is about 420.3469129234.

The spelling of 74271738 in words is "seventy-four million, two hundred seventy-one thousand, seven hundred thirty-eight".