427191429 has 16 divisors (see below), whose sum is σ = 651635840. Its totient is φ = 243855360.

The previous prime is 427191409. The next prime is 427191433. The reversal of 427191429 is 924191724.

It is not a de Polignac number, because 427191429 - 2⁷ = 427191301 is a prime.

It is a super-2 number, since 2×427191429² = 364985034022124082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427191409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11109 + ... + 31269.

It is an arithmetic number, because the mean of its divisors is an integer number (40727240).

Almost surely, 2^427191429 is an apocalyptic number.

It is an amenable number.

427191429 is a deficient number, since it is larger than the sum of its proper divisors (224444411).

427191429 is a wasteful number, since it uses less digits than its factorization.

427191429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21180.

The product of its digits is 36288, while the sum is 39.

The square root of 427191429 is about 20668.6097500533. The cubic root of 427191429 is about 753.1373343228.

The spelling of 427191429 in words is "four hundred twenty-seven million, one hundred ninety-one thousand, four hundred twenty-nine".