30778014 has 16 divisors (see below), whose sum is σ = 61834752. Its totient is φ = 10212888.

The previous prime is 30777941. The next prime is 30778021. The reversal of 30778014 is 41087703.

It is a happy number.

It is a super-2 number, since 2×30778014² = 1894572291568392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10164 + ... + 12839.

It is an arithmetic number, because the mean of its divisors is an integer number (3864672).

Almost surely, 2^30778014 is an apocalyptic number.

30778014 is an abundant number, since it is smaller than the sum of its proper divisors (31056738).

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

30778014 is a wasteful number, since it uses less digits than its factorization.

30778014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23231.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 30778014 is about 5547.7936154835. The cubic root of 30778014 is about 313.3864376066.

The spelling of 30778014 in words is "thirty million, seven hundred seventy-eight thousand, fourteen".