30042758 has 8 divisors (see below), whose sum is σ = 45125640. Its totient is φ = 15000880.

The previous prime is 30042737. The next prime is 30042773. The reversal of 30042758 is 85724003.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30042758.

It is a congruent number.

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, 8348 + ... + 11391.

It is an arithmetic number, because the mean of its divisors is an integer number (5640705).

Almost surely, 2^30042758 is an apocalyptic number.

30042758 is a deficient number, since it is larger than the sum of its proper divisors (15082882).

30042758 is a wasteful number, since it uses less digits than its factorization.

30042758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20502.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 30042758 is about 5481.1274387666. The cubic root of 30042758 is about 310.8708016816.

The spelling of 30042758 in words is "thirty million, forty-two thousand, seven hundred fifty-eight".