47445394 has 8 divisors (see below), whose sum is σ = 74913840. Its totient is φ = 22474116.

The previous prime is 47445379. The next prime is 47445397. The reversal of 47445394 is 49354474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (47445397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624244 + ... + 624319.

It is an arithmetic number, because the mean of its divisors is an integer number (9364230).

Almost surely, 2^47445394 is an apocalyptic number.

47445394 is a deficient number, since it is larger than the sum of its proper divisors (27468446).

47445394 is a wasteful number, since it uses less digits than its factorization.

47445394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248584.

The product of its digits is 241920, while the sum is 40.

The square root of 47445394 is about 6888.0617012335. The cubic root of 47445394 is about 362.0189900806.

The spelling of 47445394 in words is "forty-seven million, four hundred forty-five thousand, three hundred ninety-four".