30940800 has 192 divisors, whose sum is σ = 111555360. Its totient is φ = 7475200.

The previous prime is 30940787. The next prime is 30940807. The reversal of 30940800 is 804903.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30940807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105454 + ... + 105746.

Almost surely, 2^30940800 is an apocalyptic number.

30940800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30940800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55777680).

30940800 is an abundant number, since it is smaller than the sum of its proper divisors (80614560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30940800 is a wasteful number, since it uses less digits than its factorization.

30940800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 30940800 is about 5562.4455053510. The cubic root of 30940800 is about 313.9379703562.

The spelling of 30940800 in words is "thirty million, nine hundred forty thousand, eight hundred".