40063220 has 24 divisors (see below), whose sum is σ = 89082504. Its totient is φ = 15082496.

The previous prime is 40063211. The next prime is 40063249. The reversal of 40063220 is 2236004.

It can be written as a sum of positive squares in 4 ways, for example, as 574564 + 39488656 = 758^2 + 6284^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent 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, 58577 + ... + 59256.

It is an arithmetic number, because the mean of its divisors is an integer number (3711771).

Almost surely, 2^40063220 is an apocalyptic number.

It is an amenable number.

40063220 is an abundant number, since it is smaller than the sum of its proper divisors (49019284).

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

40063220 is a wasteful number, since it uses less digits than its factorization.

40063220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117859 (or 117857 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40063220 is about 6329.5513269109. The cubic root of 40063220 is about 342.1752689623.

Adding to 40063220 its reverse (2236004), we get a palindrome (42299224).

The spelling of 40063220 in words is "forty million, sixty-three thousand, two hundred twenty".