1430129720 has 32 divisors (see below), whose sum is σ = 3225262320. Its totient is φ = 570723840.

The previous prime is 1430129683. The next prime is 1430129741. The reversal of 1430129720 is 279210341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23966 + ... + 58605.

Almost surely, 2^1430129720 is an apocalyptic number.

1430129720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430129720 is an abundant number, since it is smaller than the sum of its proper divisors (1795132600).

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

1430129720 is a wasteful number, since it uses less digits than its factorization.

1430129720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83015 (or 83011 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1430129720 is about 37817.0559404087. The cubic root of 1430129720 is about 1126.6572368681.

The spelling of 1430129720 in words is "one billion, four hundred thirty million, one hundred twenty-nine thousand, seven hundred twenty".