2402342553640 has 64 divisors (see below), whose sum is σ = 5531468817600. Its totient is φ = 938505802752.

The previous prime is 2402342553613. The next prime is 2402342553641. The reversal of 2402342553640 is 463552432042.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2402342553593 and 2402342553602.

It is not an unprimeable number, because it can be changed into a prime (2402342553641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21328591 + ... + 21440929.

It is an arithmetic number, because the mean of its divisors is an integer number (86429200275).

Almost surely, 2^{2402342553640} is an apocalyptic number.

2402342553640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402342553640 is an abundant number, since it is smaller than the sum of its proper divisors (3129126263960).

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

2402342553640 is a wasteful number, since it uses less digits than its factorization.

2402342553640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124826 (or 124822 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 2402342553640 its reverse (463552432042), we get a palindrome (2865894985682).

The spelling of 2402342553640 in words is "two trillion, four hundred two billion, three hundred forty-two million, five hundred fifty-three thousand, six hundred forty".