1345836492 has 384 divisors, whose sum is σ = 4786790400. Its totient is φ = 315705600.

The previous prime is 1345836463. The next prime is 1345836517. The reversal of 1345836492 is 2946385431.

1345836492 is a `hidden beast` number, since 1 + 3 + 4 + 583 + 64 + 9 + 2 = 666.

It is a super-2 number, since 2×1345836492² = 3622551726397732128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6378267 + ... + 6378477.

It is an arithmetic number, because the mean of its divisors is an integer number (12465600).

Almost surely, 2^1345836492 is an apocalyptic number.

1345836492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345836492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2393395200).

1345836492 is an abundant number, since it is smaller than the sum of its proper divisors (3440953908).

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

1345836492 is a wasteful number, since it uses less digits than its factorization.

1345836492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 306 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 1345836492 is about 36685.6442222295. The cubic root of 1345836492 is about 1104.0720947720.

The spelling of 1345836492 in words is "one billion, three hundred forty-five million, eight hundred thirty-six thousand, four hundred ninety-two".