1346806820 has 24 divisors (see below), whose sum is σ = 2835772800. Its totient is φ = 537298272.

The previous prime is 1346806801. The next prime is 1346806823. The reversal of 1346806820 is 286086431.

It is a happy number.

It is a super-2 number, since 2×1346806820² = 3627777220797024800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1346806823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81260 + ... + 96419.

It is an arithmetic number, because the mean of its divisors is an integer number (118157200).

Almost surely, 2^1346806820 is an apocalyptic number.

1346806820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1346806820 is an abundant number, since it is smaller than the sum of its proper divisors (1488965980).

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

1346806820 is a wasteful number, since it uses less digits than its factorization.

1346806820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178067 (or 178065 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1346806820 is about 36698.8667399962. The cubic root of 1346806820 is about 1104.3373708563.

The spelling of 1346806820 in words is "one billion, three hundred forty-six million, eight hundred six thousand, eight hundred twenty".