40199254650 has 108 divisors (see below), whose sum is σ = 111599518446. Its totient is φ = 10373889600.

The previous prime is 40199254639. The next prime is 40199254657. The reversal of 40199254650 is 5645299104.

40199254650 is a `hidden beast` number, since 4 + 0 + 19 + 92 + 546 + 5 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 25379357481 + 14819897169 = 159309^2 + 121737^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 40199254596 and 40199254605.

It is not an unprimeable number, because it can be changed into a prime (40199254657) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 385972 + ... + 478928.

Almost surely, 2^40199254650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40199254650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55799759223).

40199254650 is an abundant number, since it is smaller than the sum of its proper divisors (71400263796).

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

40199254650 is a wasteful number, since it uses less digits than its factorization.

40199254650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93037 (or 92998 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

It can be divided in two parts, 40199 and 254650, that added together give a square (294849 = 543²).

The spelling of 40199254650 in words is "forty billion, one hundred ninety-nine million, two hundred fifty-four thousand, six hundred fifty".