30479742 has 24 divisors (see below), whose sum is σ = 69924816. Its totient is φ = 9562176.

The previous prime is 30479737. The next prime is 30479747. The reversal of 30479742 is 24797403.

It is an interprime number because it is at equal distance from previous prime (30479737) and next prime (30479747).

It is a junction number, because it is equal to n+sod(n) for n = 30479697 and 30479706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30479747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49498 + ... + 50109.

It is an arithmetic number, because the mean of its divisors is an integer number (2913534).

Almost surely, 2^30479742 is an apocalyptic number.

30479742 is an abundant number, since it is smaller than the sum of its proper divisors (39445074).

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

30479742 is a wasteful number, since it uses less digits than its factorization.

30479742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99632 (or 99629 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 30479742 is about 5520.8461308028. The cubic root of 30479742 is about 312.3707992837.

The spelling of 30479742 in words is "thirty million, four hundred seventy-nine thousand, seven hundred forty-two".