74224730 has 8 divisors (see below), whose sum is σ = 133604532. Its totient is φ = 29689888.

The previous prime is 74224729. The next prime is 74224741. The reversal of 74224730 is 3742247.

It can be written as a sum of positive squares in 2 ways, for example, as 68178049 + 6046681 = 8257^2 + 2459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 74224693 and 74224702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3711227 + ... + 3711246.

Almost surely, 2^74224730 is an apocalyptic number.

74224730 is a deficient number, since it is larger than the sum of its proper divisors (59379802).

74224730 is a wasteful number, since it uses less digits than its factorization.

74224730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422480.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 74224730 is about 8615.3775309037. The cubic root of 74224730 is about 420.2582123470.

Adding to 74224730 its reverse (3742247), we get a palindrome (77966977).

The spelling of 74224730 in words is "seventy-four million, two hundred twenty-four thousand, seven hundred thirty".