1346889378 has 16 divisors (see below), whose sum is σ = 2694350880. Its totient is φ = 448867776.

The previous prime is 1346889359. The next prime is 1346889391. The reversal of 1346889378 is 8739886431.

It is a super-2 number, since 2×1346889378² = 3628221993138453768, which contains 22 as substring.

It is a Curzon number.

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, 10593 + ... + 52971.

It is an arithmetic number, because the mean of its divisors is an integer number (168396930).

Almost surely, 2^1346889378 is an apocalyptic number.

1346889378 is an abundant number, since it is smaller than the sum of its proper divisors (1347461502).

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

1346889378 is a wasteful number, since it uses less digits than its factorization.

1346889378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47681.

The product of its digits is 6967296, while the sum is 57.

The square root of 1346889378 is about 36699.9915258846. The cubic root of 1346889378 is about 1104.3599353450.

The spelling of 1346889378 in words is "one billion, three hundred forty-six million, eight hundred eighty-nine thousand, three hundred seventy-eight".