40210040520 has 256 divisors, whose sum is σ = 145150387200. Its totient is φ = 9842549760.

The previous prime is 40210040491. The next prime is 40210040543. The reversal of 40210040520 is 2504001204.

40210040520 is a `hidden beast` number, since 4 + 0 + 2 + 100 + 40 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40210040493 and 40210040502.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2533329 + ... + 2549151.

It is an arithmetic number, because the mean of its divisors is an integer number (566993700).

Almost surely, 2^40210040520 is an apocalyptic number.

40210040520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40210040520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72575193600).

40210040520 is an abundant number, since it is smaller than the sum of its proper divisors (104940346680).

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

40210040520 is a wasteful number, since it uses less digits than its factorization.

40210040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16037 (or 16027 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 40210040520 its reverse (2504001204), we get a palindrome (42714041724).

The spelling of 40210040520 in words is "forty billion, two hundred ten million, forty thousand, five hundred twenty".