4231845 has 40 divisors (see below), whose sum is σ = 7794336. Its totient is φ = 2204496.

The previous prime is 4231837. The next prime is 4231849. The reversal of 4231845 is 5481324.

It is not a de Polignac number, because 4231845 - 2³ = 4231837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231849) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 98394 + ... + 98436.

Almost surely, 2^4231845 is an apocalyptic number.

4231845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4231845 is a deficient number, since it is larger than the sum of its proper divisors (3562491).

4231845 is an frugal number, since it uses more digits than its factorization.

4231845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 51 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 4231845 is about 2057.1448660704. The cubic root of 4231845 is about 161.7496132022.

The spelling of 4231845 in words is "four million, two hundred thirty-one thousand, eight hundred forty-five".