40623903 has 8 divisors (see below), whose sum is σ = 60183600. Its totient is φ = 27082584.

The previous prime is 40623859. The next prime is 40623923. The reversal of 40623903 is 30932604.

It is not a de Polignac number, because 40623903 - 2⁹ = 40623391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1504589 = 40623903 / (4 + 0 + 6 + 2 + 3 + 9 + 0 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40623923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752268 + ... + 752321.

It is an arithmetic number, because the mean of its divisors is an integer number (7522950).

Almost surely, 2^40623903 is an apocalyptic number.

40623903 is a deficient number, since it is larger than the sum of its proper divisors (19559697).

40623903 is a wasteful number, since it uses less digits than its factorization.

40623903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504598 (or 1504592 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 40623903 is about 6373.6883356499. The cubic root of 40623903 is about 343.7641224832.

The spelling of 40623903 in words is "forty million, six hundred twenty-three thousand, nine hundred three".