40022208 has 224 divisors, whose sum is σ = 131673600. Its totient is φ = 11860992.

The previous prime is 40022153. The next prime is 40022219. The reversal of 40022208 is 80222004.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 755110 + ... + 755162.

Almost surely, 2^40022208 is an apocalyptic number.

40022208 is a gapful number since it is divisible by the number (48) 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 40022208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65836800).

40022208 is an abundant number, since it is smaller than the sum of its proper divisors (91651392).

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

40022208 is a wasteful number, since it uses less digits than its factorization.

40022208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 40022208 is about 6326.3107732706. The cubic root of 40022208 is about 342.0584695354.

The spelling of 40022208 in words is "forty million, twenty-two thousand, two hundred eight".