30492261 has 8 divisors (see below), whose sum is σ = 45173760. Its totient is φ = 20328156.

The previous prime is 30492257. The next prime is 30492269. The reversal of 30492261 is 16229403.

It is not a de Polignac number, because 30492261 - 2² = 30492257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1129343 = 30492261 / (3 + 0 + 4 + 9 + 2 + 2 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30492269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564645 + ... + 564698.

It is an arithmetic number, because the mean of its divisors is an integer number (5646720).

Almost surely, 2^30492261 is an apocalyptic number.

It is an amenable number.

30492261 is a deficient number, since it is larger than the sum of its proper divisors (14681499).

30492261 is a wasteful number, since it uses less digits than its factorization.

30492261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129352 (or 1129346 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30492261 is about 5521.9798080036. The cubic root of 30492261 is about 312.4135603057.

The spelling of 30492261 in words is "thirty million, four hundred ninety-two thousand, two hundred sixty-one".