30490473 has 12 divisors (see below), whose sum is σ = 44022480. Its totient is φ = 18763056.

The previous prime is 30490463. The next prime is 30490487. The reversal of 30490473 is 37409403.

It is not a de Polignac number, because 30490473 - 2⁵ = 30490441 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 30490473.

It is not an unprimeable number, because it can be changed into a prime (30490403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29563 + ... + 30576.

It is an arithmetic number, because the mean of its divisors is an integer number (3668540).

Almost surely, 2^30490473 is an apocalyptic number.

It is an amenable number.

30490473 is a deficient number, since it is larger than the sum of its proper divisors (13532007).

30490473 is a wasteful number, since it uses less digits than its factorization.

30490473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60168 (or 60155 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 30490473 is about 5521.8179071751. The cubic root of 30490473 is about 312.4074537687.

Adding to 30490473 its reverse (37409403), we get a palindrome (67899876).

The spelling of 30490473 in words is "thirty million, four hundred ninety thousand, four hundred seventy-three".