30343918 has 32 divisors (see below), whose sum is σ = 51840000. Its totient is φ = 13194720.

The previous prime is 30343913. The next prime is 30343921. The reversal of 30343918 is 81934303.

It is a self number, because there is not a number n which added to its sum of digits gives 30343918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126843 + ... + 127081.

It is an arithmetic number, because the mean of its divisors is an integer number (1620000).

Almost surely, 2^30343918 is an apocalyptic number.

30343918 is a deficient number, since it is larger than the sum of its proper divisors (21496082).

30343918 is a wasteful number, since it uses less digits than its factorization.

30343918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30343918 is about 5508.5313832273. The cubic root of 30343918 is about 311.9061121728.

The spelling of 30343918 in words is "thirty million, three hundred forty-three thousand, nine hundred eighteen".