30249400 has 24 divisors (see below), whose sum is σ = 70330320. Its totient is φ = 12099680.

The previous prime is 30249391. The next prime is 30249403. The reversal of 30249400 is 494203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30249403) 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 5 ways as a sum of consecutive naturals, for example, 75424 + ... + 75823.

It is an arithmetic number, because the mean of its divisors is an integer number (2930430).

Almost surely, 2^30249400 is an apocalyptic number.

It is an amenable number.

30249400 is an abundant number, since it is smaller than the sum of its proper divisors (40080920).

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

30249400 is a wasteful number, since it uses less digits than its factorization.

30249400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151263 (or 151254 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30249400 is about 5499.9454542750. The cubic root of 30249400 is about 311.5819241455.

The spelling of 30249400 in words is "thirty million, two hundred forty-nine thousand, four hundred".