40226172 has 96 divisors (see below), whose sum is σ = 114573312. Its totient is φ = 10735296.

The previous prime is 40226167. The next prime is 40226177. The reversal of 40226172 is 27162204.

It is an interprime number because it is at equal distance from previous prime (40226167) and next prime (40226177).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40226177) 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, 90583 + ... + 91025.

It is an arithmetic number, because the mean of its divisors is an integer number (1193472).

Almost surely, 2^40226172 is an apocalyptic number.

40226172 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40226172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57286656).

40226172 is an abundant number, since it is smaller than the sum of its proper divisors (74347140).

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

40226172 is a wasteful number, since it uses less digits than its factorization.

40226172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 40226172 is about 6342.4105827359. The cubic root of 40226172 is about 342.6385593853.

Adding to 40226172 its reverse (27162204), we get a palindrome (67388376).

The spelling of 40226172 in words is "forty million, two hundred twenty-six thousand, one hundred seventy-two".