1345489670 has 16 divisors (see below), whose sum is σ = 2767864608. Its totient is φ = 461310720.

The previous prime is 1345489637. The next prime is 1345489679. The reversal of 1345489670 is 769845431.

It is a super-4 number, since 4×1345489670⁴ (a number of 38 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345489679) by changing a digit.

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, 9610571 + ... + 9610710.

It is an arithmetic number, because the mean of its divisors is an integer number (172991538).

Almost surely, 2^1345489670 is an apocalyptic number.

1345489670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345489670 is an abundant number, since it is smaller than the sum of its proper divisors (1422374938).

1345489670 is a wasteful number, since it uses less digits than its factorization.

1345489670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19221295.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 1345489670 is about 36680.9169732710. The cubic root of 1345489670 is about 1103.9772468487.

The spelling of 1345489670 in words is "one billion, three hundred forty-five million, four hundred eighty-nine thousand, six hundred seventy".