47742372 has 30 divisors (see below), whose sum is σ = 124808838. Its totient is φ = 15914016.

The previous prime is 47742367. The next prime is 47742377. The reversal of 47742372 is 27324774.

It is an interprime number because it is at equal distance from previous prime (47742367) and next prime (47742377).

It can be written as a sum of positive squares in only one way, i.e., 27815076 + 19927296 = 5274^2 + 4464^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47742377) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 73353 + ... + 74000.

Almost surely, 2^47742372 is an apocalyptic number.

It is an amenable number.

47742372 is an abundant number, since it is smaller than the sum of its proper divisors (77066466).

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

47742372 is a wasteful number, since it uses less digits than its factorization.

47742372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147369 (or 147358 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 47742372 is about 6909.5855157889. The cubic root of 47742372 is about 362.7727557970.

It can be divided in two parts, 477 and 42372, that added together give a square (42849 = 207²).

The spelling of 47742372 in words is "forty-seven million, seven hundred forty-two thousand, three hundred seventy-two".