40350440000 has 420 divisors, whose sum is σ = 111521101824. Its totient is φ = 14466816000.

The previous prime is 40350439963. The next prime is 40350440023. The reversal of 40350440000 is 4405304.

It is a happy number.

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 59 ways as a sum of consecutive naturals, for example, 317719937 + ... + 317720063.

Almost surely, 2^40350440000 is an apocalyptic number.

40350440000 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 40350440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55760550912).

40350440000 is an abundant number, since it is smaller than the sum of its proper divisors (71170661824).

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

40350440000 is a wasteful number, since it uses less digits than its factorization.

40350440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 194 counting only the distinct ones).

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

Adding to 40350440000 its reverse (4405304), we get a palindrome (40354845304).

The spelling of 40350440000 in words is "forty billion, three hundred fifty million, four hundred forty thousand".