30890402 has 8 divisors (see below), whose sum is σ = 46512576. Its totient is φ = 15386212.

The previous prime is 30890401. The next prime is 30890407. The reversal of 30890402 is 20409803.

30890402 is nontrivially palindromic in base 14 and base 15.

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 (30890401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28838 + ... + 29889.

It is an arithmetic number, because the mean of its divisors is an integer number (5814072).

Almost surely, 2^30890402 is an apocalyptic number.

30890402 is a deficient number, since it is larger than the sum of its proper divisors (15622174).

30890402 is a wasteful number, since it uses less digits than its factorization.

30890402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58992.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30890402 is about 5557.9134574047. The cubic root of 30890402 is about 313.7674248403.

The spelling of 30890402 in words is "thirty million, eight hundred ninety thousand, four hundred two".