667772342 has 8 divisors (see below), whose sum is σ = 1060579656. Its totient is φ = 314245792.

The previous prime is 667772321. The next prime is 667772353. The reversal of 667772342 is 243277766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 667772293 and 667772302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9820148 + ... + 9820215.

It is an arithmetic number, because the mean of its divisors is an integer number (132572457).

Almost surely, 2^667772342 is an apocalyptic number.

667772342 is a deficient number, since it is larger than the sum of its proper divisors (392807314).

667772342 is a wasteful number, since it uses less digits than its factorization.

667772342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19640382.

The product of its digits is 592704, while the sum is 44.

The square root of 667772342 is about 25841.2914150977. The cubic root of 667772342 is about 874.0631461759.

The spelling of 667772342 in words is "six hundred sixty-seven million, seven hundred seventy-two thousand, three hundred forty-two".