1429772668 has 12 divisors (see below), whose sum is σ = 2506680232. Its totient is φ = 713578320.

The previous prime is 1429772647. The next prime is 1429772681. The reversal of 1429772668 is 8662779241.

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, 324543 + ... + 328918.

Almost surely, 2^1429772668 is an apocalyptic number.

It is an amenable number.

1429772668 is a deficient number, since it is larger than the sum of its proper divisors (1076907564).

1429772668 is a wasteful number, since it uses less digits than its factorization.

1429772668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654012 (or 654010 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The square root of 1429772668 is about 37812.3348657551. The cubic root of 1429772668 is about 1126.5634671220.

The spelling of 1429772668 in words is "one billion, four hundred twenty-nine million, seven hundred seventy-two thousand, six hundred sixty-eight".