30492146 has 8 divisors (see below), whose sum is σ = 46143324. Its totient is φ = 15111040.

The previous prime is 30492139. The next prime is 30492149. The reversal of 30492146 is 64129403.

It can be written as a sum of positive squares in 2 ways, for example, as 27447121 + 3045025 = 5239^2 + 1745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30492149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67235 + ... + 67686.

Almost surely, 2^30492146 is an apocalyptic number.

30492146 is a deficient number, since it is larger than the sum of its proper divisors (15651178).

30492146 is a wasteful number, since it uses less digits than its factorization.

30492146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135036.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30492146 is about 5521.9693950619. The cubic root of 30492146 is about 312.4131675546.

The spelling of 30492146 in words is "thirty million, four hundred ninety-two thousand, one hundred forty-six".