47229930 has 72 divisors (see below), whose sum is σ = 135007236. Its totient is φ = 11447040.

The previous prime is 47229901. The next prime is 47229937. The reversal of 47229930 is 3992274.

It can be written as a sum of positive squares in 2 ways, for example, as 39727809 + 7502121 = 6303^2 + 2739^2 .

It is not an unprimeable number, because it can be changed into a prime (47229937) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8722 + ... + 13058.

Almost surely, 2^47229930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47229930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67503618).

47229930 is an abundant number, since it is smaller than the sum of its proper divisors (87777306).

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

47229930 is a wasteful number, since it uses less digits than its factorization.

47229930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 47229930 is about 6872.4035096900. The cubic root of 47229930 is about 361.4701455462.

The spelling of 47229930 in words is "forty-seven million, two hundred twenty-nine thousand, nine hundred thirty".