40220139 has 8 divisors (see below), whose sum is σ = 54934992. Its totient is φ = 26159360.

The previous prime is 40220137. The next prime is 40220143. The reversal of 40220139 is 93102204.

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

It is a cyclic number.

It is not a de Polignac number, because 40220139 - 2¹ = 40220137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40220137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163374 + ... + 163619.

It is an arithmetic number, because the mean of its divisors is an integer number (6866874).

Almost surely, 2^40220139 is an apocalyptic number.

40220139 is a deficient number, since it is larger than the sum of its proper divisors (14714853).

40220139 is a wasteful number, since it uses less digits than its factorization.

40220139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327037.

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

The square root of 40220139 is about 6341.9349570931. The cubic root of 40220139 is about 342.6214292295.

The spelling of 40220139 in words is "forty million, two hundred twenty thousand, one hundred thirty-nine".