1345747746 has 16 divisors (see below), whose sum is σ = 3075994944. Its totient is φ = 384499344.

The previous prime is 1345747717. The next prime is 1345747769. The reversal of 1345747746 is 6477475431.

It is a super-2 number, since 2×1345747746² = 3622073991728161032, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1345747695 and 1345747704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16020765 + ... + 16020848.

It is an arithmetic number, because the mean of its divisors is an integer number (192249684).

Almost surely, 2^1345747746 is an apocalyptic number.

1345747746 is an abundant number, since it is smaller than the sum of its proper divisors (1730247198).

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

1345747746 is a wasteful number, since it uses less digits than its factorization.

1345747746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32041625.

The product of its digits is 1975680, while the sum is 48.

The square root of 1345747746 is about 36684.4346555866. The cubic root of 1345747746 is about 1104.0478263124.

The spelling of 1345747746 in words is "one billion, three hundred forty-five million, seven hundred forty-seven thousand, seven hundred forty-six".