74193420 has 48 divisors (see below), whose sum is σ = 237420288. Its totient is φ = 16958400.

The previous prime is 74193409. The next prime is 74193467. The reversal of 74193420 is 2439147.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87906 + ... + 88745.

It is an arithmetic number, because the mean of its divisors is an integer number (4946256).

Almost surely, 2^74193420 is an apocalyptic number.

74193420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74193420 is an abundant number, since it is smaller than the sum of its proper divisors (163226868).

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

74193420 is a wasteful number, since it uses less digits than its factorization.

74193420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176670 (or 176668 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 74193420 is about 8613.5602395293. The cubic root of 74193420 is about 420.1991119401.

The spelling of 74193420 in words is "seventy-four million, one hundred ninety-three thousand, four hundred twenty".