30641480 has 32 divisors (see below), whose sum is σ = 73000440. Its totient is φ = 11535360.

The previous prime is 30641477. The next prime is 30641489. The reversal of 30641480 is 8414603.

It can be written as a sum of positive squares in 4 ways, for example, as 30492484 + 148996 = 5522^2 + 386^2 .

It is not an unprimeable number, because it can be changed into a prime (30641489) 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, 21851 + ... + 23210.

Almost surely, 2^30641480 is an apocalyptic number.

It is an amenable number.

30641480 is an abundant number, since it is smaller than the sum of its proper divisors (42358960).

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

30641480 is a wasteful number, since it uses less digits than its factorization.

30641480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45089 (or 45085 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 30641480 is about 5535.4746860590. The cubic root of 30641480 is about 312.9223473356.

The spelling of 30641480 in words is "thirty million, six hundred forty-one thousand, four hundred eighty".