40617822 has 64 divisors (see below), whose sum is σ = 96297984. Its totient is φ = 11182080.

The previous prime is 40617821. The next prime is 40617827. The reversal of 40617822 is 22871604.

It is a self number, because there is not a number n which added to its sum of digits gives 40617822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40617821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157918 + ... + 158174.

It is an arithmetic number, because the mean of its divisors is an integer number (1504656).

Almost surely, 2^40617822 is an apocalyptic number.

40617822 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40617822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48148992).

40617822 is an abundant number, since it is smaller than the sum of its proper divisors (55680162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40617822 is a wasteful number, since it uses less digits than its factorization.

40617822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 40617822 is about 6373.2112784686. The cubic root of 40617822 is about 343.7469689209.

The spelling of 40617822 in words is "forty million, six hundred seventeen thousand, eight hundred twenty-two".