669420422 has 32 divisors (see below), whose sum is σ = 1119744000. Its totient is φ = 297562720.

The previous prime is 669420421. The next prime is 669420457. The reversal of 669420422 is 224024966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669420421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445829 + ... + 447327.

It is an arithmetic number, because the mean of its divisors is an integer number (34992000).

Almost surely, 2^669420422 is an apocalyptic number.

669420422 is a deficient number, since it is larger than the sum of its proper divisors (450323578).

669420422 is a wasteful number, since it uses less digits than its factorization.

669420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 669420422 is about 25873.1602630989. The cubic root of 669420422 is about 874.7816258313.

The spelling of 669420422 in words is "six hundred sixty-nine million, four hundred twenty thousand, four hundred twenty-two".