30545942 has 32 divisors (see below), whose sum is σ = 54373440. Its totient is φ = 12597120.

The previous prime is 30545929. The next prime is 30545951. The reversal of 30545942 is 24954503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30545899 and 30545908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56192 + ... + 56732.

It is an arithmetic number, because the mean of its divisors is an integer number (1699170).

Almost surely, 2^30545942 is an apocalyptic number.

30545942 is a deficient number, since it is larger than the sum of its proper divisors (23827498).

30545942 is a wasteful number, since it uses less digits than its factorization.

30545942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 30545942 is about 5526.8383366985. The cubic root of 30545942 is about 312.5967853812.

The spelling of 30545942 in words is "thirty million, five hundred forty-five thousand, nine hundred forty-two".