4040012550 has 192 divisors, whose sum is σ = 11703250944. Its totient is φ = 903312000.

The previous prime is 4040012519. The next prime is 4040012563. The reversal of 4040012550 is 552100404.

4040012550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13159497 + ... + 13159803.

It is an arithmetic number, because the mean of its divisors is an integer number (60954432).

Almost surely, 2^4040012550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4040012550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5851625472).

4040012550 is an abundant number, since it is smaller than the sum of its proper divisors (7663238394).

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

4040012550 is a wasteful number, since it uses less digits than its factorization.

4040012550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 4040012550 is about 63561.0930522753. The cubic root of 4040012550 is about 1592.6764975368.

Adding to 4040012550 its reverse (552100404), we get a palindrome (4592112954).

The spelling of 4040012550 in words is "four billion, forty million, twelve thousand, five hundred fifty".