669283942 has 4 divisors (see below), whose sum is σ = 1003925916. Its totient is φ = 334641970.

The previous prime is 669283933. The next prime is 669283961. The reversal of 669283942 is 249382966.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167320984 + ... + 167320987.

It is an arithmetic number, because the mean of its divisors is an integer number (250981479).

Almost surely, 2^669283942 is an apocalyptic number.

669283942 is a deficient number, since it is larger than the sum of its proper divisors (334641974).

669283942 is a wasteful number, since it uses less digits than its factorization.

669283942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334641973.

The product of its digits is 1119744, while the sum is 49.

The square root of 669283942 is about 25870.5226464407. The cubic root of 669283942 is about 874.7221722568.

The spelling of 669283942 in words is "six hundred sixty-nine million, two hundred eighty-three thousand, nine hundred forty-two".