40104023420520 has 128 divisors (see below), whose sum is σ = 134655845558400. Its totient is φ = 10616344846848.

The previous prime is 40104023420509. The next prime is 40104023420533. The reversal of 40104023420520 is 2502432040104.

40104023420520 is a `hidden beast` number, since 4 + 0 + 1 + 0 + 402 + 34 + 205 + 20 = 666.

It is a super-3 number, since 3×40104023420520³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135375234 + ... + 135671153.

It is an arithmetic number, because the mean of its divisors is an integer number (1051998793425).

Almost surely, 2^{40104023420520} is an apocalyptic number.

40104023420520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40104023420520 is an abundant number, since it is smaller than the sum of its proper divisors (94551822137880).

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

40104023420520 is a wasteful number, since it uses less digits than its factorization.

40104023420520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271046544 (or 271046534 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 40104023420520 its reverse (2502432040104), we get a palindrome (42606455460624).

The spelling of 40104023420520 in words is "forty trillion, one hundred four billion, twenty-three million, four hundred twenty thousand, five hundred twenty".