429657149 has 4 divisors (see below), whose sum is σ = 431186460. Its totient is φ = 428127840.

The previous prime is 429657143. The next prime is 429657169. The reversal of 429657149 is 941756924.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 362712025 + 66945124 = 19045^2 + 8182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-429657149 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 (429657143) 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, 764234 + ... + 764795.

It is an arithmetic number, because the mean of its divisors is an integer number (107796615).

Almost surely, 2^429657149 is an apocalyptic number.

It is an amenable number.

429657149 is a deficient number, since it is larger than the sum of its proper divisors (1529311).

429657149 is a wasteful number, since it uses less digits than its factorization.

429657149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529310.

The product of its digits is 544320, while the sum is 47.

The square root of 429657149 is about 20728.1728331274. The cubic root of 429657149 is about 754.5835745790.

The spelling of 429657149 in words is "four hundred twenty-nine million, six hundred fifty-seven thousand, one hundred forty-nine".