1345442250540 has 96 divisors (see below), whose sum is σ = 3823971056640. Its totient is φ = 353382898176.

The previous prime is 1345442250521. The next prime is 1345442250541. The reversal of 1345442250540 is 450522445431.

It is not an unprimeable number, because it can be changed into a prime (1345442250541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38932509 + ... + 38967051.

It is an arithmetic number, because the mean of its divisors is an integer number (39833031840).

Almost surely, 2^{1345442250540} is an apocalyptic number.

1345442250540 is a gapful number since it is divisible by the number (10) 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 1345442250540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1911985528320).

1345442250540 is an abundant number, since it is smaller than the sum of its proper divisors (2478528806100).

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

1345442250540 is a wasteful number, since it uses less digits than its factorization.

1345442250540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44311 (or 44309 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 1345442250540 its reverse (450522445431), we get a palindrome (1795964695971).

The spelling of 1345442250540 in words is "one trillion, three hundred forty-five billion, four hundred forty-two million, two hundred fifty thousand, five hundred forty".