30542690 has 16 divisors (see below), whose sum is σ = 57870720. Its totient is φ = 11574000.

The previous prime is 30542669. The next prime is 30542717. The reversal of 30542690 is 9624503.

It is a super-2 number, since 2×30542690² = 1865711824872200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80186 + ... + 80565.

It is an arithmetic number, because the mean of its divisors is an integer number (3616920).

Almost surely, 2^30542690 is an apocalyptic number.

30542690 is a deficient number, since it is larger than the sum of its proper divisors (27328030).

30542690 is a wasteful number, since it uses less digits than its factorization.

30542690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160777.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 30542690 is about 5526.5441281148. The cubic root of 30542690 is about 312.5856917000.

The spelling of 30542690 in words is "thirty million, five hundred forty-two thousand, six hundred ninety".