1429988843 has 4 divisors (see below), whose sum is σ = 1431135000. Its totient is φ = 1428842688.

The previous prime is 1429988797. The next prime is 1429988851. The reversal of 1429988843 is 3488899241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1429988843 - 2⁸ = 1429988587 is a prime.

It is a super-2 number, since 2×1429988843² = 4089736182208957298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429988873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571205 + ... + 573702.

It is an arithmetic number, because the mean of its divisors is an integer number (357783750).

Almost surely, 2^1429988843 is an apocalyptic number.

1429988843 is a deficient number, since it is larger than the sum of its proper divisors (1146157).

1429988843 is a wasteful number, since it uses less digits than its factorization.

1429988843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146156.

The product of its digits is 3981312, while the sum is 56.

The square root of 1429988843 is about 37815.1932825948. The cubic root of 1429988843 is about 1126.6202413189.

The spelling of 1429988843 in words is "one billion, four hundred twenty-nine million, nine hundred eighty-eight thousand, eight hundred forty-three".