30140402 has 16 divisors (see below), whose sum is σ = 46033920. Its totient is φ = 14798448.

The previous prime is 30140399. The next prime is 30140413. The reversal of 30140402 is 20404103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26624 + ... + 27732.

It is an arithmetic number, because the mean of its divisors is an integer number (2877120).

Almost surely, 2^30140402 is an apocalyptic number.

30140402 is a deficient number, since it is larger than the sum of its proper divisors (15893518).

30140402 is a wasteful number, since it uses less digits than its factorization.

30140402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30140402 is about 5490.0275044848. The cubic root of 30140402 is about 311.2072315337.

Adding to 30140402 its reverse (20404103), we get a palindrome (50544505).

The spelling of 30140402 in words is "thirty million, one hundred forty thousand, four hundred two".