1345258772 has 48 divisors (see below), whose sum is σ = 2769893952. Its totient is φ = 563604480.

The previous prime is 1345258709. The next prime is 1345258777. The reversal of 1345258772 is 2778525431.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345258777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517508 + ... + 520100.

It is an arithmetic number, because the mean of its divisors is an integer number (57706124).

Almost surely, 2^1345258772 is an apocalyptic number.

It is an amenable number.

1345258772 is an abundant number, since it is smaller than the sum of its proper divisors (1424635180).

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

1345258772 is a wasteful number, since it uses less digits than its factorization.

1345258772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528 (or 3526 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 1345258772 is about 36677.7694523536. The cubic root of 1345258772 is about 1103.9140924629.

The spelling of 1345258772 in words is "one billion, three hundred forty-five million, two hundred fifty-eight thousand, seven hundred seventy-two".