30049400 has 24 divisors (see below), whose sum is σ = 69865320. Its totient is φ = 12019680.

The previous prime is 30049391. The next prime is 30049417. The reversal of 30049400 is 494003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74924 + ... + 75323.

It is an arithmetic number, because the mean of its divisors is an integer number (2911055).

Almost surely, 2^30049400 is an apocalyptic number.

It is an amenable number.

30049400 is an abundant number, since it is smaller than the sum of its proper divisors (39815920).

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

30049400 is a wasteful number, since it uses less digits than its factorization.

30049400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150263 (or 150254 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30049400 is about 5481.7333025239. The cubic root of 30049400 is about 310.8937096063.

The spelling of 30049400 in words is "thirty million, forty-nine thousand, four hundred".