40707404040 has 64 divisors (see below), whose sum is σ = 122173608960. Its totient is φ = 10850739200.

The previous prime is 40707403939. The next prime is 40707404041. The reversal of 40707404040 is 4040470704.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40707403989 and 40707404007.

It is not an unprimeable number, because it can be changed into a prime (40707404041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219865 + ... + 360215.

It is an arithmetic number, because the mean of its divisors is an integer number (1908962640).

Almost surely, 2^40707404040 is an apocalyptic number.

40707404040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40707404040 is an abundant number, since it is smaller than the sum of its proper divisors (81466204920).

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

40707404040 is a wasteful number, since it uses less digits than its factorization.

40707404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142782 (or 142778 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

Adding to 40707404040 its reverse (4040470704), we get a palindrome (44747874744).

The spelling of 40707404040 in words is "forty billion, seven hundred seven million, four hundred four thousand, forty".