40499901 has 24 divisors (see below), whose sum is σ = 64078560. Its totient is φ = 24496416.

The previous prime is 40499881. The next prime is 40499911. The reversal of 40499901 is 10999404.

It is not a de Polignac number, because 40499901 - 2⁵ = 40499869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40499911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3970 + ... + 9836.

It is an arithmetic number, because the mean of its divisors is an integer number (2669940).

Almost surely, 2^40499901 is an apocalyptic number.

It is an amenable number.

40499901 is a deficient number, since it is larger than the sum of its proper divisors (23578659).

40499901 is a wasteful number, since it uses less digits than its factorization.

40499901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945 (or 5942 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 40499901 is about 6363.9532524996. The cubic root of 40499901 is about 343.4139929467.

The spelling of 40499901 in words is "forty million, four hundred ninety-nine thousand, nine hundred one".