74238138434 has 16 divisors (see below), whose sum is σ = 111483060480. Its totient is φ = 37077143520.

The previous prime is 74238138419. The next prime is 74238138487. The reversal of 74238138434 is 43483183247.

It is a super-2 number, since 2×74238138434² (a number of 23 digits) contains 22 as substring.

It is a Curzon 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, 9370727 + ... + 9378645.

It is an arithmetic number, because the mean of its divisors is an integer number (6967691280).

Almost surely, 2^74238138434 is an apocalyptic number.

74238138434 is a deficient number, since it is larger than the sum of its proper divisors (37244922046).

74238138434 is a wasteful number, since it uses less digits than its factorization.

74238138434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625.

The product of its digits is 1548288, while the sum is 47.

The spelling of 74238138434 in words is "seventy-four billion, two hundred thirty-eight million, one hundred thirty-eight thousand, four hundred thirty-four".