40043373 has 4 divisors (see below), whose sum is σ = 53391168. Its totient is φ = 26695580.

The previous prime is 40043371. The next prime is 40043383. The reversal of 40043373 is 37334004.

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 40043373 - 2¹ = 40043371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043371) 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, 6673893 + ... + 6673898.

It is an arithmetic number, because the mean of its divisors is an integer number (13347792).

Almost surely, 2^40043373 is an apocalyptic number.

It is an amenable number.

40043373 is a deficient number, since it is larger than the sum of its proper divisors (13347795).

40043373 is a wasteful number, since it uses less digits than its factorization.

40043373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13347794.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 40043373 is about 6327.9833280438. The cubic root of 40043373 is about 342.1187559952.

Adding to 40043373 its reverse (37334004), we get a palindrome (77377377).

The spelling of 40043373 in words is "forty million, forty-three thousand, three hundred seventy-three".