40621503 has 8 divisors (see below), whose sum is σ = 58328368. Its totient is φ = 24997824.

The previous prime is 40621463. The next prime is 40621549. The reversal of 40621503 is 30512604.

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 40621503 - 2⁹ = 40620991 is a prime.

It is the 6374-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40621503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40621573) by changing a digit.

It is a nontrivial repunit in base 6373.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520750 + ... + 520827.

It is an arithmetic number, because the mean of its divisors is an integer number (7291046).

Almost surely, 2^40621503 is an apocalyptic number.

40621503 is a deficient number, since it is larger than the sum of its proper divisors (17706865).

40621503 is a wasteful number, since it uses less digits than its factorization.

40621503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041593.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 40621503 is about 6373.5000588374. The cubic root of 40621503 is about 343.7573526582.

It can be divided in two parts, 4062 and 1503, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 40621503 in words is "forty million, six hundred twenty-one thousand, five hundred three".