40436618850 has 48 divisors (see below), whose sum is σ = 111425353440. Its totient is φ = 10783098000.

The previous prime is 40436618821. The next prime is 40436618861. The reversal of 40436618850 is 5881663404.

40436618850 is a `hidden beast` number, since 404 + 3 + 66 + 188 + 5 + 0 = 666.

40436618850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40436618796 and 40436618805.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14975176 + ... + 14977875.

It is an arithmetic number, because the mean of its divisors is an integer number (2321361530).

Almost surely, 2^40436618850 is an apocalyptic number.

40436618850 is an abundant number, since it is smaller than the sum of its proper divisors (70988734590).

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

40436618850 is a wasteful number, since it uses less digits than its factorization.

40436618850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29953072 (or 29953061 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 40436618850 in words is "forty billion, four hundred thirty-six million, six hundred eighteen thousand, eight hundred fifty".