30400653 has 4 divisors (see below), whose sum is σ = 40534208. Its totient is φ = 20267100.

The previous prime is 30400651. The next prime is 30400723. The reversal of 30400653 is 35600403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30400653 - 2¹ = 30400651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5066773 + ... + 5066778.

It is an arithmetic number, because the mean of its divisors is an integer number (10133552).

Almost surely, 2^30400653 is an apocalyptic number.

It is an amenable number.

30400653 is a deficient number, since it is larger than the sum of its proper divisors (10133555).

30400653 is a wasteful number, since it uses less digits than its factorization.

30400653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133554.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30400653 is about 5513.6787175170. The cubic root of 30400653 is about 312.1003847757.

The spelling of 30400653 in words is "thirty million, four hundred thousand, six hundred fifty-three".