30457400 has 24 divisors (see below), whose sum is σ = 70813920. Its totient is φ = 12182880.

The previous prime is 30457397. The next prime is 30457403. The reversal of 30457400 is 475403.

It is an interprime number because it is at equal distance from previous prime (30457397) and next prime (30457403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30457403) 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, 75944 + ... + 76343.

It is an arithmetic number, because the mean of its divisors is an integer number (2950580).

Almost surely, 2^30457400 is an apocalyptic number.

It is an amenable number.

30457400 is an abundant number, since it is smaller than the sum of its proper divisors (40356520).

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

30457400 is a wasteful number, since it uses less digits than its factorization.

30457400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152303 (or 152294 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30457400 is about 5518.8223381443. The cubic root of 30457400 is about 312.2944568361.

The spelling of 30457400 in words is "thirty million, four hundred fifty-seven thousand, four hundred".