1345026660 has 48 divisors (see below), whose sum is σ = 3929821056. Its totient is φ = 343078912.

The previous prime is 1345026659. The next prime is 1345026671. The reversal of 1345026660 is 666205431.

It is a super-2 number, since 2×1345026660² = 3618193432221511200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485949 + ... + 488708.

It is an arithmetic number, because the mean of its divisors is an integer number (81871272).

Almost surely, 2^1345026660 is an apocalyptic number.

1345026660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345026660 is an abundant number, since it is smaller than the sum of its proper divisors (2584794396).

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

1345026660 is a wasteful number, since it uses less digits than its factorization.

1345026660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974692 (or 974690 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1345026660 is about 36674.6051103485. The cubic root of 1345026660 is about 1103.8505987442.

The spelling of 1345026660 in words is "one billion, three hundred forty-five million, twenty-six thousand, six hundred sixty".