40220403 has 8 divisors (see below), whose sum is σ = 53811408. Its totient is φ = 26721504.

The previous prime is 40220393. The next prime is 40220407. The reversal of 40220403 is 30402204.

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 40220403 - 2⁴ = 40220387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40220407) 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, 22000 + ... + 23757.

It is an arithmetic number, because the mean of its divisors is an integer number (6726426).

Almost surely, 2^40220403 is an apocalyptic number.

40220403 is a deficient number, since it is larger than the sum of its proper divisors (13591005).

40220403 is a wasteful number, since it uses less digits than its factorization.

40220403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46053.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40220403 is about 6341.9557708959. The cubic root of 40220403 is about 342.6221788694.

Adding to 40220403 its reverse (30402204), we get a palindrome (70622607).

The spelling of 40220403 in words is "forty million, two hundred twenty thousand, four hundred three".