74161438 has 16 divisors (see below), whose sum is σ = 120415680. Its totient is φ = 34052256.

The previous prime is 74161433. The next prime is 74161457. The reversal of 74161438 is 83416147.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74161433) 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, 2118 + ... + 12361.

It is an arithmetic number, because the mean of its divisors is an integer number (7525980).

Almost surely, 2^74161438 is an apocalyptic number.

74161438 is a deficient number, since it is larger than the sum of its proper divisors (46254242).

74161438 is a wasteful number, since it uses less digits than its factorization.

74161438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14691.

The product of its digits is 16128, while the sum is 34.

The square root of 74161438 is about 8611.7035480792. The cubic root of 74161438 is about 420.1387259047.

The spelling of 74161438 in words is "seventy-four million, one hundred sixty-one thousand, four hundred thirty-eight".