47742942 has 32 divisors (see below), whose sum is σ = 105346080. Its totient is φ = 14330880.

The previous prime is 47742941. The next prime is 47742967. The reversal of 47742942 is 24924774.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 47742942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47742941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4267 + ... + 10662.

It is an arithmetic number, because the mean of its divisors is an integer number (3292065).

Almost surely, 2^47742942 is an apocalyptic number.

47742942 is an abundant number, since it is smaller than the sum of its proper divisors (57603138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47742942 is a wasteful number, since it uses less digits than its factorization.

47742942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14988.

The product of its digits is 112896, while the sum is 39.

The square root of 47742942 is about 6909.6267627130. The cubic root of 47742942 is about 362.7741995156.

It can be divided in two parts, 47742 and 942, that added together give a palindrome (48684).

The spelling of 47742942 in words is "forty-seven million, seven hundred forty-two thousand, nine hundred forty-two".