67240442 has 4 divisors (see below), whose sum is σ = 100860666. Its totient is φ = 33620220.

The previous prime is 67240441. The next prime is 67240469. The reversal of 67240442 is 24404276.

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., 51566761 + 15673681 = 7181^2 + 3959^2 .

It is not an unprimeable number, because it can be changed into a prime (67240441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16810109 + ... + 16810112.

Almost surely, 2^67240442 is an apocalyptic number.

67240442 is a deficient number, since it is larger than the sum of its proper divisors (33620224).

67240442 is a wasteful number, since it uses less digits than its factorization.

67240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33620223.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 67240442 is about 8200.0269511752. The cubic root of 67240442 is about 406.6400841115.

It can be divided in two parts, 672 and 40442, that added together give a palindrome (41114).

The spelling of 67240442 in words is "sixty-seven million, two hundred forty thousand, four hundred forty-two".