1345873744 has 20 divisors (see below), whose sum is σ = 2650380340. Its totient is φ = 661904640.

The previous prime is 1345873733. The next prime is 1345873747. The reversal of 1345873744 is 4473785431.

It can be written as a sum of positive squares in 2 ways, for example, as 551310400 + 794563344 = 23480^2 + 28188^2 .

It is a super-2 number, since 2×1345873744² = 3622752269577155072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1345873694 and 1345873703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345873747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688509 + ... + 690460.

It is an arithmetic number, because the mean of its divisors is an integer number (132519017).

Almost surely, 2^1345873744 is an apocalyptic number.

It is an amenable number.

1345873744 is a deficient number, since it is larger than the sum of its proper divisors (1304506596).

1345873744 is a wasteful number, since it uses less digits than its factorization.

1345873744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379038 (or 1379032 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 46.

The square root of 1345873744 is about 36686.1519377544. The cubic root of 1345873744 is about 1104.0822813770.

It can be divided in two parts, 134 and 5873744, that added together give a triangular number (5873878 = T₃₄₂₇).

The spelling of 1345873744 in words is "one billion, three hundred forty-five million, eight hundred seventy-three thousand, seven hundred forty-four".