40221350 has 24 divisors (see below), whose sum is σ = 80567760. Its totient is φ = 14850720.

The previous prime is 40221343. The next prime is 40221361. The reversal of 40221350 is 5312204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30290 + ... + 31589.

It is an arithmetic number, because the mean of its divisors is an integer number (3356990).

Almost surely, 2^40221350 is an apocalyptic number.

40221350 is an abundant number, since it is smaller than the sum of its proper divisors (40346410).

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

40221350 is a wasteful number, since it uses less digits than its factorization.

40221350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61904 (or 61899 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40221350 is about 6342.0304319674. The cubic root of 40221350 is about 342.6248678915.

Adding to 40221350 its reverse (5312204), we get a palindrome (45533554).

The spelling of 40221350 in words is "forty million, two hundred twenty-one thousand, three hundred fifty".