74739430 has 32 divisors (see below), whose sum is σ = 137998080. Its totient is φ = 29134560.

The previous prime is 74739421. The next prime is 74739439. The reversal of 74739430 is 3493747.

It is an interprime number because it is at equal distance from previous prime (74739421) and next prime (74739439).

It is a self number, because there is not a number n which added to its sum of digits gives 74739430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74739439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76807 + ... + 77773.

It is an arithmetic number, because the mean of its divisors is an integer number (4312440).

Almost surely, 2^74739430 is an apocalyptic number.

74739430 is a deficient number, since it is larger than the sum of its proper divisors (63258650).

74739430 is a wasteful number, since it uses less digits than its factorization.

74739430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 74739430 is about 8645.1969324013. The cubic root of 74739430 is about 421.2273809643.

The spelling of 74739430 in words is "seventy-four million, seven hundred thirty-nine thousand, four hundred thirty".