30311402 has 8 divisors (see below), whose sum is σ = 49600512. Its totient is φ = 13777900.

The previous prime is 30311371. The next prime is 30311417. The reversal of 30311402 is 20411303.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 688874 + ... + 688917.

It is an arithmetic number, because the mean of its divisors is an integer number (6200064).

Almost surely, 2^30311402 is an apocalyptic number.

30311402 is a deficient number, since it is larger than the sum of its proper divisors (19289110).

30311402 is a wasteful number, since it uses less digits than its factorization.

30311402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377804.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30311402 is about 5505.5791702599. The cubic root of 30311402 is about 311.7946613494.

Adding to 30311402 its reverse (20411303), we get a palindrome (50722705).

Subtracting from 30311402 its reverse (20411303), we obtain a palindrome (9900099).

The spelling of 30311402 in words is "thirty million, three hundred eleven thousand, four hundred two".