40220193 has 16 divisors (see below), whose sum is σ = 57899520. Its totient is φ = 24687744.

The previous prime is 40220183. The next prime is 40220197. The reversal of 40220193 is 39102204.

It is not a de Polignac number, because 40220193 - 2⁸ = 40219937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40220197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17605 + ... + 19757.

It is an arithmetic number, because the mean of its divisors is an integer number (3618720).

Almost surely, 2^40220193 is an apocalyptic number.

It is an amenable number.

40220193 is a deficient number, since it is larger than the sum of its proper divisors (17679327).

40220193 is a wasteful number, since it uses less digits than its factorization.

40220193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40220193 is about 6341.9392144674. The cubic root of 40220193 is about 342.6215825652.

Adding to 40220193 its reverse (39102204), we get a palindrome (79322397).

The spelling of 40220193 in words is "forty million, two hundred twenty thousand, one hundred ninety-three".