47245418 has 12 divisors (see below), whose sum is σ = 77896770. Its totient is φ = 21475080.

The previous prime is 47245403. The next prime is 47245421. The reversal of 47245418 is 81454274.

It can be written as a sum of positive squares in only one way, i.e., 42549529 + 4695889 = 6523^2 + 2167^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97373 + ... + 97856.

Almost surely, 2^47245418 is an apocalyptic number.

47245418 is a deficient number, since it is larger than the sum of its proper divisors (30651352).

47245418 is a wasteful number, since it uses less digits than its factorization.

47245418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195253 (or 195242 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 47245418 is about 6873.5302428956. The cubic root of 47245418 is about 361.5096532466.

Subtracting 47245418 from its reverse (81454274), we obtain a triangular number (34208856 = T₈₂₇₁).

The spelling of 47245418 in words is "forty-seven million, two hundred forty-five thousand, four hundred eighteen".