40654220 has 12 divisors (see below), whose sum is σ = 85373904. Its totient is φ = 16261680.

The previous prime is 40654213. The next prime is 40654241. The reversal of 40654220 is 2245604.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016336 + ... + 1016375.

It is an arithmetic number, because the mean of its divisors is an integer number (7114492).

Almost surely, 2^40654220 is an apocalyptic number.

It is an amenable number.

40654220 is an abundant number, since it is smaller than the sum of its proper divisors (44719684).

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

40654220 is a wasteful number, since it uses less digits than its factorization.

40654220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032720 (or 2032718 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40654220 is about 6376.0661853528. The cubic root of 40654220 is about 343.8496165284.

Adding to 40654220 its reverse (2245604), we get a palindrome (42899824).

The spelling of 40654220 in words is "forty million, six hundred fifty-four thousand, two hundred twenty".