40311022 has 4 divisors (see below), whose sum is σ = 60466536. Its totient is φ = 20155510.

The previous prime is 40311013. The next prime is 40311023. The reversal of 40311022 is 22011304.

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

It is a junction number, because it is equal to n+sod(n) for n = 40310993 and 40311011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40311023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077754 + ... + 10077757.

It is an arithmetic number, because the mean of its divisors is an integer number (15116634).

Almost surely, 2^40311022 is an apocalyptic number.

40311022 is a deficient number, since it is larger than the sum of its proper divisors (20155514).

40311022 is a wasteful number, since it uses less digits than its factorization.

40311022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20155513.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40311022 is about 6349.0961561470. The cubic root of 40311022 is about 342.8793020235.

Adding to 40311022 its reverse (22011304), we get a palindrome (62322326).

The spelling of 40311022 in words is "forty million, three hundred eleven thousand, twenty-two".