1345467840 has 56 divisors (see below), whose sum is σ = 4271863440. Its totient is φ = 358791168.

The previous prime is 1345467787. The next prime is 1345467853. The reversal of 1345467840 is 487645431.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1345467792 and 1345467801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699805 + ... + 701724.

Almost surely, 2^1345467840 is an apocalyptic number.

1345467840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345467840 is an abundant number, since it is smaller than the sum of its proper divisors (2926395600).

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

1345467840 is a wasteful number, since it uses less digits than its factorization.

1345467840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401549 (or 1401539 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 1345467840 is about 36680.6194058934. The cubic root of 1345467840 is about 1103.9712762953.

The spelling of 1345467840 in words is "one billion, three hundred forty-five million, four hundred sixty-seven thousand, eight hundred forty".