40221468 has 96 divisors (see below), whose sum is σ = 120798720. Its totient is φ = 11335680.

The previous prime is 40221443. The next prime is 40221481. The reversal of 40221468 is 86412204.

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

It is a congruent number.

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, 62428 + ... + 63068.

It is an arithmetic number, because the mean of its divisors is an integer number (1258320).

Almost surely, 2^40221468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40221468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60399360).

40221468 is an abundant number, since it is smaller than the sum of its proper divisors (80577252).

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

40221468 is a wasteful number, since it uses less digits than its factorization.

40221468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 40221468 is about 6342.0397349749. The cubic root of 40221468 is about 342.6252029515.

The spelling of 40221468 in words is "forty million, two hundred twenty-one thousand, four hundred sixty-eight".