30375420 has 48 divisors (see below), whose sum is σ = 85551648. Its totient is φ = 8052480.

The previous prime is 30375407. The next prime is 30375439. The reversal of 30375420 is 2457303.

It is a super-2 number, since 2×30375420² = 1845332280352800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9462 + ... + 12258.

It is an arithmetic number, because the mean of its divisors is an integer number (1782326).

Almost surely, 2^30375420 is an apocalyptic number.

30375420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30375420 is an abundant number, since it is smaller than the sum of its proper divisors (55176228).

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

30375420 is a wasteful number, since it uses less digits than its factorization.

30375420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30375420 is about 5511.3900243042. The cubic root of 30375420 is about 312.0140115338.

The spelling of 30375420 in words is "thirty million, three hundred seventy-five thousand, four hundred twenty".