1429797920 has 96 divisors (see below), whose sum is σ = 3664117296. Its totient is φ = 525107200.

The previous prime is 1429797913. The next prime is 1429797947. The reversal of 1429797920 is 297979241.

It can be written as a sum of positive squares in 8 ways, for example, as 130051216 + 1299746704 = 11404^2 + 36052^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105110 + ... + 117930.

Almost surely, 2^1429797920 is an apocalyptic number.

1429797920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1429797920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832058648).

1429797920 is an abundant number, since it is smaller than the sum of its proper divisors (2234319376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1429797920 is a wasteful number, since it uses less digits than its factorization.

1429797920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894 (or 12886 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 1429797920 is about 37812.6687764828. The cubic root of 1429797920 is about 1126.5700993682.

The spelling of 1429797920 in words is "one billion, four hundred twenty-nine million, seven hundred ninety-seven thousand, nine hundred twenty".