431928149 has 8 divisors (see below), whose sum is σ = 436793280. Its totient is φ = 427081536.

The previous prime is 431928139. The next prime is 431928151. The reversal of 431928149 is 941829134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431928149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431928139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45254 + ... + 53960.

It is an arithmetic number, because the mean of its divisors is an integer number (54599160).

Almost surely, 2^431928149 is an apocalyptic number.

It is an amenable number.

431928149 is a deficient number, since it is larger than the sum of its proper divisors (4865131).

431928149 is a wasteful number, since it uses less digits than its factorization.

431928149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259.

The product of its digits is 62208, while the sum is 41.

The square root of 431928149 is about 20782.8811525255. The cubic root of 431928149 is about 755.9107171561.

The spelling of 431928149 in words is "four hundred thirty-one million, nine hundred twenty-eight thousand, one hundred forty-nine".