40225721346 has 24 divisors (see below), whose sum is σ = 89511291324. Its totient is φ = 13046179680.

The previous prime is 40225721311. The next prime is 40225721359. The reversal of 40225721346 is 64312752204.

40225721346 is a `hidden beast` number, since 40 + 2 + 2 + 572 + 1 + 3 + 46 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34356476025 + 5869245321 = 185355^2 + 76611^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40225721346.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30198825 + ... + 30200156.

Almost surely, 2^40225721346 is an apocalyptic number.

40225721346 is an abundant number, since it is smaller than the sum of its proper divisors (49285569978).

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

40225721346 is a wasteful number, since it uses less digits than its factorization.

40225721346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60399026 (or 60399023 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 40225721346 in words is "forty billion, two hundred twenty-five million, seven hundred twenty-one thousand, three hundred forty-six".