40122454020 has 96 divisors (see below), whose sum is σ = 123769489536. Its totient is φ = 9630336000.

The previous prime is 40122454007. The next prime is 40122454027. The reversal of 40122454020 is 2045422104.

It is a happy number.

It is a super-2 number, since 2×40122454020² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40122454027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234289 + ... + 367608.

It is an arithmetic number, because the mean of its divisors is an integer number (1289265516).

Almost surely, 2^40122454020 is an apocalyptic number.

It is an amenable number.

40122454020 is an abundant number, since it is smaller than the sum of its proper divisors (83647035516).

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

40122454020 is a wasteful number, since it uses less digits than its factorization.

40122454020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602021 (or 602019 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 40122454020 its reverse (2045422104), we get a palindrome (42167876124).

The spelling of 40122454020 in words is "forty billion, one hundred twenty-two million, four hundred fifty-four thousand, twenty".