74161838 has 16 divisors (see below), whose sum is σ = 115023264. Its totient is φ = 35834400.

The previous prime is 74161823. The next prime is 74161847. The reversal of 74161838 is 83816147.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7856 + ... + 14492.

It is an arithmetic number, because the mean of its divisors is an integer number (7188954).

Almost surely, 2^74161838 is an apocalyptic number.

74161838 is a deficient number, since it is larger than the sum of its proper divisors (40861426).

74161838 is a wasteful number, since it uses less digits than its factorization.

74161838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827.

The product of its digits is 32256, while the sum is 38.

The square root of 74161838 is about 8611.7267722565. The cubic root of 74161838 is about 420.1394812622.

The spelling of 74161838 in words is "seventy-four million, one hundred sixty-one thousand, eight hundred thirty-eight".