40113242420 has 24 divisors (see below), whose sum is σ = 84252379848. Its totient is φ = 16042521600.

The previous prime is 40113242399. The next prime is 40113242459. The reversal of 40113242420 is 2424231104.

40113242420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5175651364 + 34937591056 = 71942^2 + 186916^2 .

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, 52901 + ... + 288140.

It is an arithmetic number, because the mean of its divisors is an integer number (3510515827).

Almost surely, 2^40113242420 is an apocalyptic number.

It is an amenable number.

40113242420 is an abundant number, since it is smaller than the sum of its proper divisors (44139137428).

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

40113242420 is a wasteful number, since it uses less digits than its factorization.

40113242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346931 (or 346929 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40113242420 its reverse (2424231104), we get a palindrome (42537473524).

The spelling of 40113242420 in words is "forty billion, one hundred thirteen million, two hundred forty-two thousand, four hundred twenty".