1345779000 has 96 divisors (see below), whose sum is σ = 4548763440. Its totient is φ = 358872000.

The previous prime is 1345778989. The next prime is 1345779023. The reversal of 1345779000 is 9775431.

It is a happy number.

It is a super-2 number, since 2×1345779000² = 3622242233682000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65766 + ... + 83765.

Almost surely, 2^1345779000 is an apocalyptic number.

1345779000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345779000 is an abundant number, since it is smaller than the sum of its proper divisors (3202984440).

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

1345779000 is a wasteful number, since it uses less digits than its factorization.

1345779000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149558 (or 149541 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 1345779000 is about 36684.8606375982. The cubic root of 1345779000 is about 1104.0563731453.

The spelling of 1345779000 in words is "one billion, three hundred forty-five million, seven hundred seventy-nine thousand".