30876420 has 48 divisors (see below), whose sum is σ = 91542528. Its totient is φ = 7749120.

The previous prime is 30876343. The next prime is 30876421. The reversal of 30876420 is 2467803.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (30876421) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14116 + ... + 16155.

It is an arithmetic number, because the mean of its divisors is an integer number (1907136).

Almost surely, 2^30876420 is an apocalyptic number.

30876420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30876420 is an abundant number, since it is smaller than the sum of its proper divisors (60666108).

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

30876420 is a wasteful number, since it uses less digits than its factorization.

30876420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30300 (or 30298 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 30876420 is about 5556.6554688949. The cubic root of 30876420 is about 313.7200772509.

The spelling of 30876420 in words is "thirty million, eight hundred seventy-six thousand, four hundred twenty".