40221354 has 16 divisors (see below), whose sum is σ = 85174848. Its totient is φ = 12618432.

The previous prime is 40221343. The next prime is 40221361. The reversal of 40221354 is 45312204.

It is a self number, because there is not a number n which added to its sum of digits gives 40221354.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197062 + ... + 197265.

It is an arithmetic number, because the mean of its divisors is an integer number (5323428).

Almost surely, 2^40221354 is an apocalyptic number.

40221354 is an abundant number, since it is smaller than the sum of its proper divisors (44953494).

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

40221354 is a wasteful number, since it uses less digits than its factorization.

40221354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394349.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40221354 is about 6342.0307473238. The cubic root of 40221354 is about 342.6248792495.

Adding to 40221354 its reverse (45312204), we get a palindrome (85533558).

The spelling of 40221354 in words is "forty million, two hundred twenty-one thousand, three hundred fifty-four".