40120226452 has 12 divisors (see below), whose sum is σ = 71199275616. Its totient is φ = 19777576280.

The previous prime is 40120226449. The next prime is 40120226477. The reversal of 40120226452 is 25462202104.

It is a self number, because there is not a number n which added to its sum of digits gives 40120226452.

It is a congruent number.

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, 70633918 + ... + 70634485.

It is an arithmetic number, because the mean of its divisors is an integer number (5933272968).

Almost surely, 2^40120226452 is an apocalyptic number.

It is an amenable number.

40120226452 is a deficient number, since it is larger than the sum of its proper divisors (31079049164).

40120226452 is a wasteful number, since it uses less digits than its factorization.

40120226452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141268478 (or 141268476 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 40120226452 its reverse (25462202104), we get a palindrome (65582428556).

The spelling of 40120226452 in words is "forty billion, one hundred twenty million, two hundred twenty-six thousand, four hundred fifty-two".