1429569 has 28 divisors (see below), whose sum is σ = 2242836. Its totient is φ = 909792.

The previous prime is 1429567. The next prime is 1429573. The reversal of 1429569 is 9659241.

It can be written as a sum of positive squares in 2 ways, for example, as 1166400 + 263169 = 1080^2 + 513^2 .

It is not a de Polignac number, because 1429569 - 2¹ = 1429567 is a prime.

It is a super-2 number, since 2×1429569² = 4087335051522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

Its product of digits (19440) is a multiple of the sum of its prime factors (108).

It is not an unprimeable number, because it can be changed into a prime (1429567) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 26947 + ... + 26999.

2^1429569 is an apocalyptic number.

It is an amenable number.

1429569 is a deficient number, since it is larger than the sum of its proper divisors (813267).

1429569 is an frugal number, since it uses more digits than its factorization.

1429569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 93 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1429569 is about 1195.6458505762. The cubic root of 1429569 is about 112.6509972412.

The spelling of 1429569 in words is "one million, four hundred twenty-nine thousand, five hundred sixty-nine".