47219290 has 36 divisors (see below), whose sum is σ = 88793082. Its totient is φ = 18079360.

The previous prime is 47219287. The next prime is 47219297. The reversal of 47219290 is 9291274.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 8649 + 47210641 = 93^2 + 6871^2 .

It is a super-2 number, since 2×47219290² = 4459322696208200, which contains 22 as substring.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (47219297) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 890904 + ... + 890956.

Almost surely, 2^47219290 is an apocalyptic number.

47219290 is a deficient number, since it is larger than the sum of its proper divisors (41573792).

47219290 is an equidigital number, since it uses as much as digits as its factorization.

47219290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 47219290 is about 6871.6293555459. The cubic root of 47219290 is about 361.4429994040.

The spelling of 47219290 in words is "forty-seven million, two hundred nineteen thousand, two hundred ninety".