40221235 has 8 divisors (see below), whose sum is σ = 51104736. Its totient is φ = 30284160.

The previous prime is 40221221. The next prime is 40221253. The reversal of 40221235 is 53212204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40221235 - 2²¹ = 38124083 is a prime.

It is a Duffinian number.

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, 236511 + ... + 236680.

It is an arithmetic number, because the mean of its divisors is an integer number (6388092).

Almost surely, 2^40221235 is an apocalyptic number.

40221235 is a deficient number, since it is larger than the sum of its proper divisors (10883501).

40221235 is a wasteful number, since it uses less digits than its factorization.

40221235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473213.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40221235 is about 6342.0213654639. The cubic root of 40221235 is about 342.6245413493.

Adding to 40221235 its reverse (53212204), we get a palindrome (93433439).

The spelling of 40221235 in words is "forty million, two hundred twenty-one thousand, two hundred thirty-five".