1345442364 has 144 divisors (see below), whose sum is σ = 4144358400. Its totient is φ = 359468928.

The previous prime is 1345442363. The next prime is 1345442369. The reversal of 1345442364 is 4632445431.

1345442364 is a `hidden beast` number, since 1 + 34 + 544 + 23 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345442363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 376474 + ... + 380030.

Almost surely, 2^1345442364 is an apocalyptic number.

1345442364 is a gapful number since it is divisible by the number (14) 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 1345442364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2072179200).

1345442364 is an abundant number, since it is smaller than the sum of its proper divisors (2798916036).

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

1345442364 is a wasteful number, since it uses less digits than its factorization.

1345442364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672 (or 3667 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 1345442364 is about 36680.2721363951. The cubic root of 1345442364 is about 1103.9643084712.

Adding to 1345442364 its reverse (4632445431), we get a palindrome (5977887795).

The spelling of 1345442364 in words is "one billion, three hundred forty-five million, four hundred forty-two thousand, three hundred sixty-four".