40220250320 has 80 divisors (see below), whose sum is σ = 98536788480. Its totient is φ = 15225408000.

The previous prime is 40220250289. The next prime is 40220250359. The reversal of 40220250320 is 2305202204.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 40220250292 and 40220250301.

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, 1492970 + ... + 1519670.

It is an arithmetic number, because the mean of its divisors is an integer number (1231709856).

Almost surely, 2^40220250320 is an apocalyptic number.

40220250320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40220250320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49268394240).

40220250320 is an abundant number, since it is smaller than the sum of its proper divisors (58316538160).

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

40220250320 is a wasteful number, since it uses less digits than its factorization.

40220250320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27724 (or 27718 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 40220250320 its reverse (2305202204), we get a palindrome (42525452524).

The spelling of 40220250320 in words is "forty billion, two hundred twenty million, two hundred fifty thousand, three hundred twenty".