429991071 has 12 divisors (see below), whose sum is σ = 605085912. Its totient is φ = 271572624.

The previous prime is 429991063. The next prime is 429991117. The reversal of 429991071 is 170199924.

It is not a de Polignac number, because 429991071 - 2³ = 429991063 is a prime.

It is a super-2 number, since 2×429991071² = 369784642279454082, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429991871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197436 + ... + 199601.

It is an arithmetic number, because the mean of its divisors is an integer number (50423826).

Almost surely, 2^429991071 is an apocalyptic number.

429991071 is a deficient number, since it is larger than the sum of its proper divisors (175094841).

429991071 is a wasteful number, since it uses less digits than its factorization.

429991071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397078 (or 397059 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 429991071 is about 20736.2260549021. The cubic root of 429991071 is about 754.7790069985.

The spelling of 429991071 in words is "four hundred twenty-nine million, nine hundred ninety-one thousand, seventy-one".