40422406 has 4 divisors (see below), whose sum is σ = 60633612. Its totient is φ = 20211202.

The previous prime is 40422341. The next prime is 40422407. The reversal of 40422406 is 60422404.

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

It is a congruent 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 as a sum of consecutive naturals, namely, 10105600 + ... + 10105603.

It is an arithmetic number, because the mean of its divisors is an integer number (15158403).

Almost surely, 2^40422406 is an apocalyptic number.

40422406 is a deficient number, since it is larger than the sum of its proper divisors (20211206).

40422406 is a wasteful number, since it uses less digits than its factorization.

40422406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211205.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 40422406 is about 6357.8617474745. The cubic root of 40422406 is about 343.1948166111.

The spelling of 40422406 in words is "forty million, four hundred twenty-two thousand, four hundred six".