30502542 has 32 divisors (see below), whose sum is σ = 70348032. Its totient is φ = 8636544.

The previous prime is 30502499. The next prime is 30502561. The reversal of 30502542 is 24520503.

It is a super-3 number, since 3×30502542³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533 + ... + 7959.

It is an arithmetic number, because the mean of its divisors is an integer number (2198376).

Almost surely, 2^30502542 is an apocalyptic number.

30502542 is an abundant number, since it is smaller than the sum of its proper divisors (39845490).

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

30502542 is a wasteful number, since it uses less digits than its factorization.

30502542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30502542 is about 5522.9106456650. The cubic root of 30502542 is about 312.4486682620.

The spelling of 30502542 in words is "thirty million, five hundred two thousand, five hundred forty-two".