40020202402040 has 64 divisors (see below), whose sum is σ = 102929814028800. Its totient is φ = 13718449300608.

The previous prime is 40020202402027. The next prime is 40020202402073. The reversal of 40020202402040 is 4020420202004.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12997130 + ... + 15778649.

It is an arithmetic number, because the mean of its divisors is an integer number (1608278344200).

Almost surely, 2^{40020202402040} is an apocalyptic number.

40020202402040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40020202402040 is an abundant number, since it is smaller than the sum of its proper divisors (62909611626760).

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

40020202402040 is a wasteful number, since it uses less digits than its factorization.

40020202402040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28780764 (or 28780760 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40020202402040 its reverse (4020420202004), we get a palindrome (44040622604044).

The spelling of 40020202402040 in words is "forty trillion, twenty billion, two hundred two million, four hundred two thousand, forty".