40220620 has 24 divisors (see below), whose sum is σ = 92142288. Its totient is φ = 14625600.

The previous prime is 40220599. The next prime is 40220639. The reversal of 40220620 is 2602204.

It is a junction number, because it is equal to n+sod(n) for n = 40220594 and 40220603.

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, 91191 + ... + 91630.

It is an arithmetic number, because the mean of its divisors is an integer number (3839262).

Almost surely, 2^40220620 is an apocalyptic number.

It is an amenable number.

40220620 is an abundant number, since it is smaller than the sum of its proper divisors (51921668).

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

40220620 is a wasteful number, since it uses less digits than its factorization.

40220620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182841 (or 182839 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40220620 is about 6341.9728791599. The cubic root of 40220620 is about 342.6227950482.

Adding to 40220620 its reverse (2602204), we get a palindrome (42822824).

The spelling of 40220620 in words is "forty million, two hundred twenty thousand, six hundred twenty".