40244251000 has 32 divisors (see below), whose sum is σ = 94171549680. Its totient is φ = 16097700000.

The previous prime is 40244250953. The next prime is 40244251001. The reversal of 40244251000 is 15244204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244251001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20121126 + ... + 20123125.

Almost surely, 2^40244251000 is an apocalyptic number.

40244251000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40244251000 is an abundant number, since it is smaller than the sum of its proper divisors (53927298680).

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

40244251000 is a wasteful number, since it uses less digits than its factorization.

40244251000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40244272 (or 40244258 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 40244251000 its reverse (15244204), we get a palindrome (40259495204).

The spelling of 40244251000 in words is "forty billion, two hundred forty-four million, two hundred fifty-one thousand".