1342453440 has 112 divisors (see below), whose sum is σ = 4280855040. Its totient is φ = 356428800.

The previous prime is 1342453439. The next prime is 1342453451. The reversal of 1342453440 is 443542431.

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

It is a junction number, because it is equal to n+sod(n) for n = 1342453398 and 1342453407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226515 + ... + 232365.

It is an arithmetic number, because the mean of its divisors is an integer number (38221920).

Almost surely, 2^1342453440 is an apocalyptic number.

1342453440 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 1342453440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2140427520).

1342453440 is an abundant number, since it is smaller than the sum of its proper divisors (2938401600).

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

1342453440 is a wasteful number, since it uses less digits than its factorization.

1342453440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110 (or 6100 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 1342453440 is about 36639.5065468955. The cubic root of 1342453440 is about 1103.1462102886.

Adding to 1342453440 its reverse (443542431), we get a palindrome (1785995871).

The spelling of 1342453440 in words is "one billion, three hundred forty-two million, four hundred fifty-three thousand, four hundred forty".