1429884 has 18 divisors (see below), whose sum is σ = 3614520. Its totient is φ = 476616.

The previous prime is 1429871. The next prime is 1429889. The reversal of 1429884 is 4889241.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 39719 = 1429884 / (1 + 4 + 2 + 9 + 8 + 8 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19824 + ... + 19895.

2^1429884 is an apocalyptic number.

It is an amenable number.

1429884 is an abundant number, since it is smaller than the sum of its proper divisors (2184636).

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

1429884 is a wasteful number, since it uses less digits than its factorization.

1429884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39729 (or 39724 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1429884 is about 1195.7775712899. Note that the first 3 decimals coincide. The cubic root of 1429884 is about 112.6592707040.

The spelling of 1429884 in words is "one million, four hundred twenty-nine thousand, eight hundred eighty-four".