40999373 has 4 divisors (see below), whose sum is σ = 41205600. Its totient is φ = 40793148.

The previous prime is 40999351. The next prime is 40999403. The reversal of 40999373 is 37399904.

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 40999373 - 2⁸ = 40999117 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 (40999313) 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, 102815 + ... + 103212.

It is an arithmetic number, because the mean of its divisors is an integer number (10301400).

Almost surely, 2^40999373 is an apocalyptic number.

It is an amenable number.

40999373 is a deficient number, since it is larger than the sum of its proper divisors (206227).

40999373 is a wasteful number, since it uses less digits than its factorization.

40999373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206226.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 40999373 is about 6403.0752767713. The cubic root of 40999373 is about 344.8199662795.

The spelling of 40999373 in words is "forty million, nine hundred ninety-nine thousand, three hundred seventy-three".