40752220 has 12 divisors (see below), whose sum is σ = 85579704. Its totient is φ = 16300880.

The previous prime is 40752211. The next prime is 40752227. The reversal of 40752220 is 2225704.

It is a junction number, because it is equal to n+sod(n) for n = 40752191 and 40752200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40752227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018786 + ... + 1018825.

It is an arithmetic number, because the mean of its divisors is an integer number (7131642).

Almost surely, 2^40752220 is an apocalyptic number.

It is an amenable number.

40752220 is an abundant number, since it is smaller than the sum of its proper divisors (44827484).

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

40752220 is a wasteful number, since it uses less digits than its factorization.

40752220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037620 (or 2037618 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 40752220 is about 6383.7465488536. The cubic root of 40752220 is about 344.1256864505.

Adding to 40752220 its reverse (2225704), we get a palindrome (42977924).

The spelling of 40752220 in words is "forty million, seven hundred fifty-two thousand, two hundred twenty".