30542774 has 8 divisors (see below), whose sum is σ = 45846648. Its totient is φ = 15260560.

The previous prime is 30542773. The next prime is 30542783. The reversal of 30542774 is 47724503.

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

It is a super-2 number, since 2×30542774² = 1865722087230152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30542774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30542773) by changing a digit.

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, 1247 + ... + 7914.

It is an arithmetic number, because the mean of its divisors is an integer number (5730831).

Almost surely, 2^30542774 is an apocalyptic number.

30542774 is a deficient number, since it is larger than the sum of its proper divisors (15303874).

30542774 is a wasteful number, since it uses less digits than its factorization.

30542774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10830.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 30542774 is about 5526.5517277956. The cubic root of 30542774 is about 312.5859782626.

The spelling of 30542774 in words is "thirty million, five hundred forty-two thousand, seven hundred seventy-four".