30427680 has 48 divisors (see below), whose sum is σ = 95848704. Its totient is φ = 8113920.

The previous prime is 30427667. The next prime is 30427687. The reversal of 30427680 is 8672403.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (30427687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31216 + ... + 32175.

It is an arithmetic number, because the mean of its divisors is an integer number (1996848).

Almost surely, 2^30427680 is an apocalyptic number.

30427680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30427680 is an abundant number, since it is smaller than the sum of its proper divisors (65421024).

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

30427680 is a wasteful number, since it uses less digits than its factorization.

30427680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63409 (or 63401 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 30427680 is about 5516.1290775325. The cubic root of 30427680 is about 312.1928459327.

The spelling of 30427680 in words is "thirty million, four hundred twenty-seven thousand, six hundred eighty".