30492973 has 16 divisors (see below), whose sum is σ = 35860480. Its totient is φ = 25389936.

The previous prime is 30492961. The next prime is 30492997. The reversal of 30492973 is 37929403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30492973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30492923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36640 + ... + 37462.

It is an arithmetic number, because the mean of its divisors is an integer number (2241280).

Almost surely, 2^30492973 is an apocalyptic number.

It is an amenable number.

30492973 is a deficient number, since it is larger than the sum of its proper divisors (5367507).

30492973 is an equidigital number, since it uses as much as digits as its factorization.

30492973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 30492973 is about 5522.0442772582. The cubic root of 30492973 is about 312.4159919251.

The spelling of 30492973 in words is "thirty million, four hundred ninety-two thousand, nine hundred seventy-three".