30045402 has 24 divisors (see below), whose sum is σ = 65201760. Its totient is φ = 9999240.

The previous prime is 30045391. The next prime is 30045467. The reversal of 30045402 is 20454003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17749 + ... + 19367.

It is an arithmetic number, because the mean of its divisors is an integer number (2716740).

Almost surely, 2^30045402 is an apocalyptic number.

30045402 is an abundant number, since it is smaller than the sum of its proper divisors (35156358).

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

30045402 is a wasteful number, since it uses less digits than its factorization.

30045402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658 (or 2655 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30045402 is about 5481.3686247141. The cubic root of 30045402 is about 310.8799211094.

Adding to 30045402 its reverse (20454003), we get a palindrome (50499405).

The spelling of 30045402 in words is "thirty million, forty-five thousand, four hundred two".