40503669 has 8 divisors (see below), whose sum is σ = 54100800. Its totient is φ = 26954496.

The previous prime is 40503653. The next prime is 40503731. The reversal of 40503669 is 96630504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40503669 - 2⁴ = 40503653 is a prime.

It is a super-2 number, since 2×40503669² = 3281094404923122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40503769) 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, 9969 + ... + 13430.

It is an arithmetic number, because the mean of its divisors is an integer number (6762600).

Almost surely, 2^40503669 is an apocalyptic number.

It is an amenable number.

40503669 is a deficient number, since it is larger than the sum of its proper divisors (13597131).

40503669 is a wasteful number, since it uses less digits than its factorization.

40503669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 40503669 is about 6364.2492880150. The cubic root of 40503669 is about 343.4246427160.

The spelling of 40503669 in words is "forty million, five hundred three thousand, six hundred sixty-nine".