1345026520 has 32 divisors (see below), whose sum is σ = 3050150400. Its totient is φ = 533772288.

The previous prime is 1345026503. The next prime is 1345026521. The reversal of 1345026520 is 256205431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345026521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127305 + ... + 137464.

It is an arithmetic number, because the mean of its divisors is an integer number (95317200).

Almost surely, 2^1345026520 is an apocalyptic number.

1345026520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345026520 is an abundant number, since it is smaller than the sum of its proper divisors (1705123880).

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

1345026520 is a wasteful number, since it uses less digits than its factorization.

1345026520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264907 (or 264903 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1345026520 is about 36674.6032016708. The cubic root of 1345026520 is about 1103.8505604453.

The spelling of 1345026520 in words is "one billion, three hundred forty-five million, twenty-six thousand, five hundred twenty".