429397385 has 8 divisors (see below), whose sum is σ = 516755400. Its totient is φ = 342532224.

The previous prime is 429397379. The next prime is 429397411. The reversal of 429397385 is 583793924.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62789776 + 366607609 = 7924^2 + 19147^2 .

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 429397385 - 2²² = 425203081 is a prime.

It is a super-2 number, since 2×429397385² = 368764228489676450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121292 + ... + 124781.

It is an arithmetic number, because the mean of its divisors is an integer number (64594425).

Almost surely, 2^429397385 is an apocalyptic number.

It is an amenable number.

429397385 is a deficient number, since it is larger than the sum of its proper divisors (87358015).

429397385 is a wasteful number, since it uses less digits than its factorization.

429397385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246427.

The product of its digits is 1632960, while the sum is 50.

The square root of 429397385 is about 20721.9059210296. The cubic root of 429397385 is about 754.4314741088.

The spelling of 429397385 in words is "four hundred twenty-nine million, three hundred ninety-seven thousand, three hundred eighty-five".