30926400 has 168 divisors, whose sum is σ = 107716320. Its totient is φ = 7741440.

The previous prime is 30926387. The next prime is 30926407. The reversal of 30926400 is 462903.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30926407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81411 + ... + 81789.

Almost surely, 2^30926400 is an apocalyptic number.

30926400 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 30926400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53858160).

30926400 is an abundant number, since it is smaller than the sum of its proper divisors (76789920).

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

30926400 is a wasteful number, since it uses less digits than its factorization.

30926400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30926400 is about 5561.1509600082. The cubic root of 30926400 is about 313.8892600420.

The spelling of 30926400 in words is "thirty million, nine hundred twenty-six thousand, four hundred".