40490226 has 64 divisors (see below), whose sum is σ = 108898560. Its totient is φ = 10886400.

The previous prime is 40490183. The next prime is 40490249. The reversal of 40490226 is 62209404.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 40490226.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3276 + ... + 9576.

It is an arithmetic number, because the mean of its divisors is an integer number (1701540).

Almost surely, 2^40490226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40490226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54449280).

40490226 is an abundant number, since it is smaller than the sum of its proper divisors (68408334).

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

40490226 is a wasteful number, since it uses less digits than its factorization.

40490226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 40490226 is about 6363.1930663779. The cubic root of 40490226 is about 343.3866447730.

The spelling of 40490226 in words is "forty million, four hundred ninety thousand, two hundred twenty-six".