30880642 has 8 divisors (see below), whose sum is σ = 49884156. Its totient is φ = 14252592.

The previous prime is 30880627. The next prime is 30880693. The reversal of 30880642 is 24608803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28291761 + 2588881 = 5319^2 + 1609^2 .

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

It is a super-2 number, since 2×30880642² = 1907228100664328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593833 + ... + 593884.

Almost surely, 2^30880642 is an apocalyptic number.

30880642 is a deficient number, since it is larger than the sum of its proper divisors (19003514).

30880642 is a wasteful number, since it uses less digits than its factorization.

30880642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187732.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 30880642 is about 5557.0353606937. The cubic root of 30880642 is about 313.7343758192.

The spelling of 30880642 in words is "thirty million, eight hundred eighty thousand, six hundred forty-two".