429568157 has 4 divisors (see below), whose sum is σ = 431201760. Its totient is φ = 427934556.

The previous prime is 429568133. The next prime is 429568199. The reversal of 429568157 is 751865924.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 429568157 - 2¹⁸ = 429306013 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 (429568057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816407 + ... + 816932.

It is an arithmetic number, because the mean of its divisors is an integer number (107800440).

Almost surely, 2^429568157 is an apocalyptic number.

It is an amenable number.

429568157 is a deficient number, since it is larger than the sum of its proper divisors (1633603).

429568157 is a wasteful number, since it uses less digits than its factorization.

429568157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633602.

The product of its digits is 604800, while the sum is 47.

The square root of 429568157 is about 20726.0260783393. The cubic root of 429568157 is about 754.5314737056.

The spelling of 429568157 in words is "four hundred twenty-nine million, five hundred sixty-eight thousand, one hundred fifty-seven".