30429980 has 36 divisors (see below), whose sum is σ = 74338488. Its totient is φ = 10432800.

The previous prime is 30429923. The next prime is 30430013. The reversal of 30429980 is 8992403.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 30429980.

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 11 ways as a sum of consecutive naturals, for example, 14546 + ... + 16505.

It is an arithmetic number, because the mean of its divisors is an integer number (2064958).

Almost surely, 2^30429980 is an apocalyptic number.

It is an amenable number.

30429980 is an abundant number, since it is smaller than the sum of its proper divisors (43908508).

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

30429980 is a wasteful number, since it uses less digits than its factorization.

30429980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31074 (or 31065 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 30429980 is about 5516.3375531234. The cubic root of 30429980 is about 312.2007118566.

The spelling of 30429980 in words is "thirty million, four hundred twenty-nine thousand, nine hundred eighty".