434623149 has 12 divisors (see below), whose sum is σ = 631948512. Its totient is φ = 287829000.

The previous prime is 434623141. The next prime is 434623151. The reversal of 434623149 is 941326434.

It is a happy number.

It is not a de Polignac number, because 434623149 - 2³ = 434623141 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434623141) 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, 158547 + ... + 161264.

It is an arithmetic number, because the mean of its divisors is an integer number (52662376).

Almost surely, 2^434623149 is an apocalyptic number.

It is an amenable number.

434623149 is a deficient number, since it is larger than the sum of its proper divisors (197325363).

434623149 is a wasteful number, since it uses less digits than its factorization.

434623149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319968 (or 319965 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 434623149 is about 20847.6173458743. The cubic root of 434623149 is about 757.4796177896.

It can be divided in two parts, 4346 and 23149, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 434623149 in words is "four hundred thirty-four million, six hundred twenty-three thousand, one hundred forty-nine".