2440040453400 has 192 divisors, whose sum is σ = 8269683206400. Its totient is φ = 590241088000.

The previous prime is 2440040453399. The next prime is 2440040453407. The reversal of 2440040453400 is 43540400442.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440040453407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2641621 + ... + 3443579.

It is an arithmetic number, because the mean of its divisors is an integer number (43071266700).

Almost surely, 2^{2440040453400} is an apocalyptic number.

2440040453400 is a gapful number since it is divisible by the number (20) 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 2440040453400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4134841603200).

2440040453400 is an abundant number, since it is smaller than the sum of its proper divisors (5829642753000).

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

2440040453400 is a wasteful number, since it uses less digits than its factorization.

2440040453400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802450 (or 802441 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 2440040453400 its reverse (43540400442), we get a palindrome (2483580853842).

The spelling of 2440040453400 in words is "two trillion, four hundred forty billion, forty million, four hundred fifty-three thousand, four hundred".