1429392880 has 80 divisors (see below), whose sum is σ = 3428262720. Its totient is φ = 553844736.

The previous prime is 1429392869. The next prime is 1429392889. The reversal of 1429392880 is 882939241.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1429392880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429392889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759781 + ... + 761659.

It is an arithmetic number, because the mean of its divisors is an integer number (42853284).

Almost surely, 2^1429392880 is an apocalyptic number.

1429392880 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 1429392880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714131360).

1429392880 is an abundant number, since it is smaller than the sum of its proper divisors (1998869840).

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

1429392880 is a wasteful number, since it uses less digits than its factorization.

1429392880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1429392880 is about 37807.3125201991. The cubic root of 1429392880 is about 1126.4637092643.

The spelling of 1429392880 in words is "one billion, four hundred twenty-nine million, three hundred ninety-two thousand, eight hundred eighty".