30440402 has 8 divisors (see below), whose sum is σ = 45967500. Its totient is φ = 15117904.

The previous prime is 30440393. The next prime is 30440429. The reversal of 30440402 is 20404403.

It can be written as a sum of positive squares in 2 ways, for example, as 24393721 + 6046681 = 4939^2 + 2459^2 .

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

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, 50777 + ... + 51372.

Almost surely, 2^30440402 is an apocalyptic number.

30440402 is a deficient number, since it is larger than the sum of its proper divisors (15527098).

30440402 is a wasteful number, since it uses less digits than its factorization.

30440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102300.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 30440402 is about 5517.2821207547. The cubic root of 30440402 is about 312.2363497860.

Adding to 30440402 its reverse (20404403), we get a palindrome (50844805).

The spelling of 30440402 in words is "thirty million, four hundred forty thousand, four hundred two".