47437042 has 4 divisors (see below), whose sum is σ = 71155566. Its totient is φ = 23718520.

The previous prime is 47436989. The next prime is 47437043. The reversal of 47437042 is 24073474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26101881 + 21335161 = 5109^2 + 4619^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 47436995 and 47437013.

It is not an unprimeable number, because it can be changed into a prime (47437043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11859259 + ... + 11859262.

Almost surely, 2^47437042 is an apocalyptic number.

47437042 is a deficient number, since it is larger than the sum of its proper divisors (23718524).

47437042 is a wasteful number, since it uses less digits than its factorization.

47437042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23718523.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 47437042 is about 6887.4554082041. The cubic root of 47437042 is about 361.9977462900.

The spelling of 47437042 in words is "forty-seven million, four hundred thirty-seven thousand, forty-two".