74942413 has 18 divisors (see below), whose sum is σ = 94158414. Its totient is φ = 59295096.

The previous prime is 74942411. The next prime is 74942437. The reversal of 74942413 is 31424947.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 51883209 + 23059204 = 7203^2 + 4802^2 .

It is not a de Polignac number, because 74942413 - 2¹ = 74942411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74942411) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5764795 + ... + 5764807.

It is an arithmetic number, because the mean of its divisors is an integer number (5231023).

Almost surely, 2^74942413 is an apocalyptic number.

It is an amenable number.

74942413 is a deficient number, since it is larger than the sum of its proper divisors (19216001).

74942413 is an frugal number, since it uses more digits than its factorization.

74942413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 20 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 74942413 is about 8656.9286123890. The cubic root of 74942413 is about 421.6083699986.

The spelling of 74942413 in words is "seventy-four million, nine hundred forty-two thousand, four hundred thirteen".