40202021760 has 64 divisors (see below), whose sum is σ = 128143950480. Its totient is φ = 10720538624.

The previous prime is 40202021759. The next prime is 40202021767. The reversal of 40202021760 is 6712020204.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40202021760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202021767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10467357 + ... + 10471196.

Almost surely, 2^40202021760 is an apocalyptic number.

40202021760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40202021760 is an abundant number, since it is smaller than the sum of its proper divisors (87941928720).

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

40202021760 is a wasteful number, since it uses less digits than its factorization.

40202021760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20938575 (or 20938563 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 40202021760 its reverse (6712020204), we get a palindrome (46914041964).

The spelling of 40202021760 in words is "forty billion, two hundred two million, twenty-one thousand, seven hundred sixty".