40420422044240 has 80 divisors (see below), whose sum is σ = 107576346875520. Its totient is φ = 13836041879040.

The previous prime is 40420422044227. The next prime is 40420422044291. The reversal of 40420422044240 is 4244022402404.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 40420422044197 and 40420422044206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57956531 + ... + 58649810.

It is an arithmetic number, because the mean of its divisors is an integer number (1344704335944).

Almost surely, 2^{40420422044240} is an apocalyptic number.

40420422044240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40420422044240 is an abundant number, since it is smaller than the sum of its proper divisors (67155924831280).

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

40420422044240 is a wasteful number, since it uses less digits than its factorization.

40420422044240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116606980 (or 116606974 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40420422044240 its reverse (4244022402404), we get a palindrome (44664444446644).

The spelling of 40420422044240 in words is "forty trillion, four hundred twenty billion, four hundred twenty-two million, forty-four thousand, two hundred forty".