74219530 has 64 divisors (see below), whose sum is σ = 168231168. Its totient is φ = 22901760.

The previous prime is 74219507. The next prime is 74219531. The reversal of 74219530 is 3591247.

It is a junction number, because it is equal to n+sod(n) for n = 74219492 and 74219501.

It is not an unprimeable number, because it can be changed into a prime (74219531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86584 + ... + 87436.

It is an arithmetic number, because the mean of its divisors is an integer number (2628612).

Almost surely, 2^74219530 is an apocalyptic number.

74219530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74219530 is an abundant number, since it is smaller than the sum of its proper divisors (94011638).

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

74219530 is a wasteful number, since it uses less digits than its factorization.

74219530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 74219530 is about 8615.0757396555. The cubic root of 74219530 is about 420.2483980360.

The spelling of 74219530 in words is "seventy-four million, two hundred nineteen thousand, five hundred thirty".