40220021002340 has 24 divisors (see below), whose sum is σ = 84520984879800. Its totient is φ = 16076781586688.

The previous prime is 40220021002339. The next prime is 40220021002361. The reversal of 40220021002340 is 4320012002204.

It can be written as a sum of positive squares in 4 ways, for example, as 7594356477796 + 32625664524544 = 2755786^2 + 5711888^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 701646515 + ... + 701703834.

It is an arithmetic number, because the mean of its divisors is an integer number (3521707703325).

Almost surely, 2^{40220021002340} is an apocalyptic number.

It is an amenable number.

40220021002340 is an abundant number, since it is smaller than the sum of its proper divisors (44300963877460).

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

40220021002340 is a wasteful number, since it uses less digits than its factorization.

40220021002340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403351791 (or 1403351789 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40220021002340 its reverse (4320012002204), we get a palindrome (44540033004544).

The spelling of 40220021002340 in words is "forty trillion, two hundred twenty billion, twenty-one million, two thousand, three hundred forty".