30400948 has 12 divisors (see below), whose sum is σ = 53241412. Its totient is φ = 15189120.

The previous prime is 30400943. The next prime is 30400973. The reversal of 30400948 is 84900403.

It can be written as a sum of positive squares in 2 ways, for example, as 25120144 + 5280804 = 5012^2 + 2298^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400943) 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, 6886 + ... + 10402.

Almost surely, 2^30400948 is an apocalyptic number.

It is an amenable number.

30400948 is a deficient number, since it is larger than the sum of its proper divisors (22840464).

30400948 is a wasteful number, since it uses less digits than its factorization.

30400948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682 (or 5680 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30400948 is about 5513.7054691015. The cubic root of 30400948 is about 312.1013942860.

The spelling of 30400948 in words is "thirty million, four hundred thousand, nine hundred forty-eight".