47422290 has 64 divisors (see below), whose sum is σ = 120637440. Its totient is φ = 11897280.

The previous prime is 47422283. The next prime is 47422301. The reversal of 47422290 is 9222474.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154317 + ... + 154623.

It is an arithmetic number, because the mean of its divisors is an integer number (1884960).

Almost surely, 2^47422290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47422290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60318720).

47422290 is an abundant number, since it is smaller than the sum of its proper divisors (73215150).

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

47422290 is a wasteful number, since it uses less digits than its factorization.

47422290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607.

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

The square root of 47422290 is about 6886.3843924080. The cubic root of 47422290 is about 361.9602176402.

The spelling of 47422290 in words is "forty-seven million, four hundred twenty-two thousand, two hundred ninety".