1000025429 has 8 divisors (see below), whose sum is σ = 1079641752. Its totient is φ = 920793600.

The previous prime is 1000025413. The next prime is 1000025443. The reversal of 1000025429 is 9245200001.

It can be written as a sum of positive squares in 4 ways, for example, as 433680625 + 566344804 = 20825^2 + 23798^2 .

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 1000025429 - 2⁴ = 1000025413 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 (1000025489) 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, 90704 + ... + 101129.

It is an arithmetic number, because the mean of its divisors is an integer number (134955219).

Almost surely, 2^1000025429 is an apocalyptic number.

It is an amenable number.

1000025429 is a deficient number, since it is larger than the sum of its proper divisors (79616323).

1000025429 is a wasteful number, since it uses less digits than its factorization.

1000025429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192247.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1000025429 is about 31623.1786669209. The cubic root of 1000025429 is about 1000.0084762615.

The spelling of 1000025429 in words is "one billion, twenty-five thousand, four hundred twenty-nine".