40244020240 has 40 divisors (see below), whose sum is σ = 93611651328. Its totient is φ = 16089985920.

The previous prime is 40244020211. The next prime is 40244020241. The reversal of 40244020240 is 4202044204.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (40244020241) 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, 52449 + ... + 288511.

Almost surely, 2^40244020240 is an apocalyptic number.

40244020240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40244020240 is an abundant number, since it is smaller than the sum of its proper divisors (53367631088).

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

40244020240 is a wasteful number, since it uses less digits than its factorization.

40244020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238207 (or 238201 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40244020240 its reverse (4202044204), we get a palindrome (44446064444).

The spelling of 40244020240 in words is "forty billion, two hundred forty-four million, twenty thousand, two hundred forty".