40849541 has 4 divisors (see below), whose sum is σ = 42625632. Its totient is φ = 39073452.

The previous prime is 40849531. The next prime is 40849553. The reversal of 40849541 is 14594804.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40849541 - 2⁶ = 40849477 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 (40849531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888011 + ... + 888056.

It is an arithmetic number, because the mean of its divisors is an integer number (10656408).

Almost surely, 2^40849541 is an apocalyptic number.

It is an amenable number.

40849541 is a deficient number, since it is larger than the sum of its proper divisors (1776091).

40849541 is a wasteful number, since it uses less digits than its factorization.

40849541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776090.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 40849541 is about 6391.3645647858. The cubic root of 40849541 is about 344.3994059468.

The spelling of 40849541 in words is "forty million, eight hundred forty-nine thousand, five hundred forty-one".