40403422 has 4 divisors (see below), whose sum is σ = 60605136. Its totient is φ = 20201710.

The previous prime is 40403417. The next prime is 40403449. The reversal of 40403422 is 22430404.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40403422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100854 + ... + 10100857.

It is an arithmetic number, because the mean of its divisors is an integer number (15151284).

Almost surely, 2^40403422 is an apocalyptic number.

40403422 is a deficient number, since it is larger than the sum of its proper divisors (20201714).

40403422 is a wasteful number, since it uses less digits than its factorization.

40403422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201713.

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

The square root of 40403422 is about 6356.3686173790. The cubic root of 40403422 is about 343.1410821336.

Adding to 40403422 its reverse (22430404), we get a palindrome (62833826).

The spelling of 40403422 in words is "forty million, four hundred three thousand, four hundred twenty-two".