74769138 has 12 divisors (see below), whose sum is σ = 161999838. Its totient is φ = 24923040.

The previous prime is 74769137. The next prime is 74769143. The reversal of 74769138 is 83196747.

It can be written as a sum of positive squares in only one way, i.e., 47238129 + 27531009 = 6873^2 + 5247^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74769093 and 74769102.

It is not an unprimeable number, because it can be changed into a prime (74769137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2076903 + ... + 2076938.

Almost surely, 2^74769138 is an apocalyptic number.

74769138 is an abundant number, since it is smaller than the sum of its proper divisors (87230700).

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

74769138 is a wasteful number, since it uses less digits than its factorization.

74769138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153849 (or 4153846 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 74769138 is about 8646.9149411799. The cubic root of 74769138 is about 421.2831844644.

The spelling of 74769138 in words is "seventy-four million, seven hundred sixty-nine thousand, one hundred thirty-eight".