434229921 has 6 divisors (see below), whose sum is σ = 627221010. Its totient is φ = 289486608.

The previous prime is 434229919. The next prime is 434229977. The reversal of 434229921 is 129922434.

434229921 is a `hidden beast` number, since 4 + 342 + 299 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 312016896 + 122213025 = 17664^2 + 11055^2 .

It is not a de Polignac number, because 434229921 - 2¹ = 434229919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434229721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24123876 + ... + 24123893.

It is an arithmetic number, because the mean of its divisors is an integer number (104536835).

Almost surely, 2^434229921 is an apocalyptic number.

It is an amenable number.

434229921 is a deficient number, since it is larger than the sum of its proper divisors (192991089).

434229921 is a wasteful number, since it uses less digits than its factorization.

434229921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48247775 (or 48247772 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 434229921 is about 20838.1842059235. The cubic root of 434229921 is about 757.2511040593.

The spelling of 434229921 in words is "four hundred thirty-four million, two hundred twenty-nine thousand, nine hundred twenty-one".