40438822 has 4 divisors (see below), whose sum is σ = 60658236. Its totient is φ = 20219410.

The previous prime is 40438813. The next prime is 40438829. The reversal of 40438822 is 22883404.

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 (40438829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10109704 + ... + 10109707.

It is an arithmetic number, because the mean of its divisors is an integer number (15164559).

Almost surely, 2^40438822 is an apocalyptic number.

40438822 is a deficient number, since it is larger than the sum of its proper divisors (20219414).

40438822 is a wasteful number, since it uses less digits than its factorization.

40438822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20219413.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 40438822 is about 6359.1526165048. The cubic root of 40438822 is about 343.2412687662.

The spelling of 40438822 in words is "forty million, four hundred thirty-eight thousand, eight hundred twenty-two".