30478974 has 8 divisors (see below), whose sum is σ = 60957960. Its totient is φ = 10159656.

The previous prime is 30478961. The next prime is 30478997. The reversal of 30478974 is 47987403.

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

30478974 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 2539909 + ... + 2539920.

It is an arithmetic number, because the mean of its divisors is an integer number (7619745).

Almost surely, 2^30478974 is an apocalyptic number.

30478974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30478974 is a wasteful number, since it uses less digits than its factorization.

30478974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079834.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 30478974 is about 5520.7765758089. The cubic root of 30478974 is about 312.3681756526.

It can be divided in two parts, 3047 and 8974, that added together give a palindrome (12021).

The spelling of 30478974 in words is "thirty million, four hundred seventy-eight thousand, nine hundred seventy-four".