42464242 has 4 divisors (see below), whose sum is σ = 63696366. Its totient is φ = 21232120.

The previous prime is 42464239. The next prime is 42464267. The reversal of 42464242 is 24246424.

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., 37442161 + 5022081 = 6119^2 + 2241^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42464242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616059 + ... + 10616062.

Almost surely, 2^42464242 is an apocalyptic number.

42464242 is a deficient number, since it is larger than the sum of its proper divisors (21232124).

42464242 is a wasteful number, since it uses less digits than its factorization.

42464242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21232123.

The product of its digits is 12288, while the sum is 28.

The square root of 42464242 is about 6516.4593146892. The cubic root of 42464242 is about 348.8787026851.

The spelling of 42464242 in words is "forty-two million, four hundred sixty-four thousand, two hundred forty-two".