42337642 has 4 divisors (see below), whose sum is σ = 63506466. Its totient is φ = 21168820.

The previous prime is 42337639. The next prime is 42337679. The reversal of 42337642 is 24673324.

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., 31911201 + 10426441 = 5649^2 + 3229^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10584409 + ... + 10584412.

Almost surely, 2^42337642 is an apocalyptic number.

42337642 is a deficient number, since it is larger than the sum of its proper divisors (21168824).

42337642 is a wasteful number, since it uses less digits than its factorization.

42337642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21168823.

The product of its digits is 24192, while the sum is 31.

The square root of 42337642 is about 6506.7381997434. The cubic root of 42337642 is about 348.5316498258.

The spelling of 42337642 in words is "forty-two million, three hundred thirty-seven thousand, six hundred forty-two".