47640030 has 32 divisors (see below), whose sum is σ = 120355200. Its totient is φ = 12035232.

The previous prime is 47640023. The next prime is 47640031. The reversal of 47640030 is 3004674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47640031) 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, 41220 + ... + 42359.

It is an arithmetic number, because the mean of its divisors is an integer number (3761100).

Almost surely, 2^47640030 is an apocalyptic number.

47640030 is an abundant number, since it is smaller than the sum of its proper divisors (72715170).

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

47640030 is a wasteful number, since it uses less digits than its factorization.

47640030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83608.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 47640030 is about 6902.1757439231. The cubic root of 47640030 is about 362.5133534518.

The spelling of 47640030 in words is "forty-seven million, six hundred forty thousand, thirty".