30942941 has 6 divisors (see below), whose sum is σ = 32870490. Its totient is φ = 29122496.

The previous prime is 30942931. The next prime is 30942943. The reversal of 30942941 is 14924903.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20894041 + 10048900 = 4571^2 + 3170^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30942941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30942898 and 30942907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30942943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53246 + ... + 53823.

It is an arithmetic number, because the mean of its divisors is an integer number (5478415).

Almost surely, 2^30942941 is an apocalyptic number.

It is an amenable number.

30942941 is a deficient number, since it is larger than the sum of its proper divisors (1927549).

30942941 is a wasteful number, since it uses less digits than its factorization.

30942941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107103 (or 107086 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 30942941 is about 5562.6379533455. The cubic root of 30942941 is about 313.9452113421.

The spelling of 30942941 in words is "thirty million, nine hundred forty-two thousand, nine hundred forty-one".