74209416 has 32 divisors (see below), whose sum is σ = 185740800. Its totient is φ = 24707520.

The previous prime is 74209409. The next prime is 74209417. The reversal of 74209416 is 61490247.

It is a happy number.

It is a super-2 number, since 2×74209416² = 11014074846122112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74209417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32025 + ... + 34263.

It is an arithmetic number, because the mean of its divisors is an integer number (5804400).

Almost surely, 2^74209416 is an apocalyptic number.

It is an amenable number.

74209416 is an abundant number, since it is smaller than the sum of its proper divisors (111531384).

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

74209416 is a wasteful number, since it uses less digits than its factorization.

74209416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629 (or 3625 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 74209416 is about 8614.4887253975. The cubic root of 74209416 is about 420.2293078883.

It can be divided in two parts, 7420 and 9416, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 74209416 in words is "seventy-four million, two hundred nine thousand, four hundred sixteen".