40225445420 has 24 divisors (see below), whose sum is σ = 84639416400. Its totient is φ = 16058562752.

The previous prime is 40225445419. The next prime is 40225445423. The reversal of 40225445420 is 2454452204.

It is not an unprimeable number, because it can be changed into a prime (40225445423) 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, 1965530 + ... + 1985889.

It is an arithmetic number, because the mean of its divisors is an integer number (3526642350).

Almost surely, 2^40225445420 is an apocalyptic number.

It is an amenable number.

40225445420 is an abundant number, since it is smaller than the sum of its proper divisors (44413970980).

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

40225445420 is a wasteful number, since it uses less digits than its factorization.

40225445420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951937 (or 3951935 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 40225445420 its reverse (2454452204), we get a palindrome (42679897624).

The spelling of 40225445420 in words is "forty billion, two hundred twenty-five million, four hundred forty-five thousand, four hundred twenty".