30472340 has 12 divisors (see below), whose sum is σ = 63991956. Its totient is φ = 12188928.

The previous prime is 30472339. The next prime is 30472363. The reversal of 30472340 is 4327403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3556996 + 26915344 = 1886^2 + 5188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761789 + ... + 761828.

It is an arithmetic number, because the mean of its divisors is an integer number (5332663).

Almost surely, 2^30472340 is an apocalyptic number.

It is an amenable number.

30472340 is an abundant number, since it is smaller than the sum of its proper divisors (33519616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30472340 is a wasteful number, since it uses less digits than its factorization.

30472340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523626 (or 1523624 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 30472340 is about 5520.1757218407. The cubic root of 30472340 is about 312.3455108385.

Adding to 30472340 its reverse (4327403), we get a palindrome (34799743).

The spelling of 30472340 in words is "thirty million, four hundred seventy-two thousand, three hundred forty".