40833749 has 10 divisors (see below), whose sum is σ = 44932950. Its totient is φ = 37108280.

The previous prime is 40833731. The next prime is 40833761. The reversal of 40833749 is 94733804.

It can be written as a sum of positive squares in only one way, i.e., 36602500 + 4231249 = 6050^2 + 2057^2 .

It is not a de Polignac number, because 40833749 - 2⁸ = 40833493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40833649) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13247 + ... + 16035.

It is an arithmetic number, because the mean of its divisors is an integer number (4493295).

Almost surely, 2^40833749 is an apocalyptic number.

It is an amenable number.

40833749 is a deficient number, since it is larger than the sum of its proper divisors (4099201).

40833749 is an frugal number, since it uses more digits than its factorization.

40833749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 40833749 is about 6390.1290284313. The cubic root of 40833749 is about 344.3550198388.

The spelling of 40833749 in words is "forty million, eight hundred thirty-three thousand, seven hundred forty-nine".