30835980 has 72 divisors (see below), whose sum is σ = 106902432. Its totient is φ = 7047936.

The previous prime is 30835969. The next prime is 30835999. The reversal of 30835980 is 8953803.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 10977 + ... + 13496.

It is an arithmetic number, because the mean of its divisors is an integer number (1484756).

Almost surely, 2^30835980 is an apocalyptic number.

30835980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30835980 is an abundant number, since it is smaller than the sum of its proper divisors (76066452).

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

30835980 is a wasteful number, since it uses less digits than its factorization.

30835980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24495 (or 24490 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 30835980 is about 5553.0153970613. The cubic root of 30835980 is about 313.5830537794.

The spelling of 30835980 in words is "thirty million, eight hundred thirty-five thousand, nine hundred eighty".