1345542744 has 192 divisors, whose sum is σ = 4242551040. Its totient is φ = 352477440.

The previous prime is 1345542739. The next prime is 1345542749. The reversal of 1345542744 is 4472455431.

It is an interprime number because it is at equal distance from previous prime (1345542739) and next prime (1345542749).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345542749) 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, 4326349 + ... + 4326659.

It is an arithmetic number, because the mean of its divisors is an integer number (22096620).

Almost surely, 2^1345542744 is an apocalyptic number.

1345542744 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 1345542744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121275520).

1345542744 is an abundant number, since it is smaller than the sum of its proper divisors (2897008296).

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

1345542744 is a wasteful number, since it uses less digits than its factorization.

1345542744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 619 counting only the distinct ones).

The product of its digits is 268800, while the sum is 39.

The square root of 1345542744 is about 36681.6404213334. The cubic root of 1345542744 is about 1103.9917624359.

The spelling of 1345542744 in words is "one billion, three hundred forty-five million, five hundred forty-two thousand, seven hundred forty-four".