30400953 has 8 divisors (see below), whose sum is σ = 44219616. Its totient is φ = 18424800.

The previous prime is 30400943. The next prime is 30400973. The reversal of 30400953 is 35900403.

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

It is not a de Polignac number, because 30400953 - 2⁶ = 30400889 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30400933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460588 + ... + 460653.

It is an arithmetic number, because the mean of its divisors is an integer number (5527452).

Almost surely, 2^30400953 is an apocalyptic number.

30400953 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30400953 is a deficient number, since it is larger than the sum of its proper divisors (13818663).

30400953 is a wasteful number, since it uses less digits than its factorization.

30400953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921255.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 30400953 is about 5513.7059225171. The cubic root of 30400953 is about 312.1014113963.

The spelling of 30400953 in words is "thirty million, four hundred thousand, nine hundred fifty-three".