74563230 has 32 divisors (see below), whose sum is σ = 204516864. Its totient is φ = 17042976.

The previous prime is 74563219. The next prime is 74563249. The reversal of 74563230 is 3236547.

74563230 = 4316² + 4317² + ... + 4319².

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 177322 + ... + 177741.

It is an arithmetic number, because the mean of its divisors is an integer number (6391152).

Almost surely, 2^74563230 is an apocalyptic number.

74563230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74563230 is an abundant number, since it is smaller than the sum of its proper divisors (129953634).

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

74563230 is a wasteful number, since it uses less digits than its factorization.

74563230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355080.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 74563230 is about 8635.0002895194. Note that the first 3 decimals coincide. The cubic root of 74563230 is about 420.8961026088.

Adding to 74563230 its reverse (3236547), we get a palindrome (77799777).

The spelling of 74563230 in words is "seventy-four million, five hundred sixty-three thousand, two hundred thirty".