40222201840 has 20 divisors (see below), whose sum is σ = 93516619464. Its totient is φ = 16088880704.

The previous prime is 40222201771. The next prime is 40222201843. The reversal of 40222201840 is 4810222204.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222201843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251388682 + ... + 251388841.

Almost surely, 2^40222201840 is an apocalyptic number.

40222201840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40222201840 is an abundant number, since it is smaller than the sum of its proper divisors (53294417624).

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

40222201840 is a wasteful number, since it uses less digits than its factorization.

40222201840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502777536 (or 502777530 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The spelling of 40222201840 in words is "forty billion, two hundred twenty-two million, two hundred one thousand, eight hundred forty".