1429185880 has 16 divisors (see below), whose sum is σ = 3215668320. Its totient is φ = 571674336.

The previous prime is 1429185829. The next prime is 1429185889. The reversal of 1429185880 is 885819241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1429185880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429185889) 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, 17864784 + ... + 17864863.

It is an arithmetic number, because the mean of its divisors is an integer number (200979270).

Almost surely, 2^1429185880 is an apocalyptic number.

1429185880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1429185880 is an abundant number, since it is smaller than the sum of its proper divisors (1786482440).

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

1429185880 is a wasteful number, since it uses less digits than its factorization.

1429185880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35729658 (or 35729654 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 46.

The square root of 1429185880 is about 37804.5748554325. The cubic root of 1429185880 is about 1126.4093297096.

The spelling of 1429185880 in words is "one billion, four hundred twenty-nine million, one hundred eighty-five thousand, eight hundred eighty".