47842442 has 4 divisors (see below), whose sum is σ = 71763666. Its totient is φ = 23921220.

The previous prime is 47842429. The next prime is 47842447. The reversal of 47842442 is 24424874.

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., 40972801 + 6869641 = 6401^2 + 2621^2 .

It is not an unprimeable number, because it can be changed into a prime (47842447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11960609 + ... + 11960612.

Almost surely, 2^47842442 is an apocalyptic number.

47842442 is a deficient number, since it is larger than the sum of its proper divisors (23921224).

47842442 is a wasteful number, since it uses less digits than its factorization.

47842442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23921223.

The product of its digits is 57344, while the sum is 35.

The square root of 47842442 is about 6916.8231146965. The cubic root of 47842442 is about 363.0260411819.

It can be divided in two parts, 47842 and 442, that added together give a palindrome (48284).

The spelling of 47842442 in words is "forty-seven million, eight hundred forty-two thousand, four hundred forty-two".