47942245 has 8 divisors (see below), whose sum is σ = 61956216. Its totient is φ = 35403456.

The previous prime is 47942231. The next prime is 47942267. The reversal of 47942245 is 54224974.

It can be written as a sum of positive squares in 4 ways, for example, as 5731236 + 42211009 = 2394^2 + 6497^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 47942245 - 2¹³ = 47934053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368722 + ... + 368851.

It is an arithmetic number, because the mean of its divisors is an integer number (7744527).

Almost surely, 2^47942245 is an apocalyptic number.

It is an amenable number.

47942245 is a deficient number, since it is larger than the sum of its proper divisors (14013971).

47942245 is a wasteful number, since it uses less digits than its factorization.

47942245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737591.

The product of its digits is 80640, while the sum is 37.

The square root of 47942245 is about 6924.0338676237. The cubic root of 47942245 is about 363.2782992330.

It can be divided in two parts, 479 and 42245, that added together give a palindrome (42724).

The spelling of 47942245 in words is "forty-seven million, nine hundred forty-two thousand, two hundred forty-five".