40690503 has 24 divisors (see below), whose sum is σ = 71124768. Its totient is φ = 21883392.

The previous prime is 40690493. The next prime is 40690541. The reversal of 40690503 is 30509604.

It is a happy number.

It is not a de Polignac number, because 40690503 - 2⁴ = 40690487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40690583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17926 + ... + 20067.

It is an arithmetic number, because the mean of its divisors is an integer number (2963532).

Almost surely, 2^40690503 is an apocalyptic number.

40690503 is a deficient number, since it is larger than the sum of its proper divisors (30434265).

40690503 is a wasteful number, since it uses less digits than its factorization.

40690503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38023 (or 38020 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 40690503 is about 6378.9108004423. The cubic root of 40690503 is about 343.9518788601.

It can be divided in two parts, 406 and 90503, that added together give a palindrome (90909).

The spelling of 40690503 in words is "forty million, six hundred ninety thousand, five hundred three".