1429421 has 8 divisors (see below), whose sum is σ = 1678080. Its totient is φ = 1191888.

The previous prime is 1429409. The next prime is 1429423. The reversal of 1429421 is 1249241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1429421 - 2¹⁸ = 1167277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501 + ... + 3018.

It is an arithmetic number, because the mean of its divisors is an integer number (209760).

2^1429421 is an apocalyptic number.

It is an amenable number.

1429421 is a deficient number, since it is larger than the sum of its proper divisors (248659).

1429421 is an equidigital number, since it uses as much as digits as its factorization.

1429421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563.

The product of its digits is 576, while the sum is 23.

The square root of 1429421 is about 1195.5839577378. The cubic root of 1429421 is about 112.6471096072.

The spelling of 1429421 in words is "one million, four hundred twenty-nine thousand, four hundred twenty-one".