40422403 has 6 divisors (see below), whose sum is σ = 47022036. Its totient is φ = 34647732.

The previous prime is 40422341. The next prime is 40422407. The reversal of 40422403 is 30422404.

It is not a de Polignac number, because 40422403 - 2⁹ = 40421891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40422407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 412425 + ... + 412522.

It is an arithmetic number, because the mean of its divisors is an integer number (7837006).

Almost surely, 2^40422403 is an apocalyptic number.

40422403 is a deficient number, since it is larger than the sum of its proper divisors (6599633).

40422403 is an equidigital number, since it uses as much as digits as its factorization.

40422403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824961 (or 824954 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40422403 is about 6357.8615115462. The cubic root of 40422403 is about 343.1948081209.

Adding to 40422403 its reverse (30422404), we get a palindrome (70844807).

Subtracting from 40422403 its reverse (30422404), we obtain a palindrome (9999999).

The spelling of 40422403 in words is "forty million, four hundred twenty-two thousand, four hundred three".