4345007920 has 40 divisors (see below), whose sum is σ = 11020522320. Its totient is φ = 1580002560.

The previous prime is 4345007881. The next prime is 4345007921. The reversal of 4345007920 is 297005434.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (4345007921) 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, 2467875 + ... + 2469634.

It is an arithmetic number, because the mean of its divisors is an integer number (275513058).

Almost surely, 2^4345007920 is an apocalyptic number.

4345007920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4345007920 is an abundant number, since it is smaller than the sum of its proper divisors (6675514400).

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

4345007920 is a wasteful number, since it uses less digits than its factorization.

4345007920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937533 (or 4937527 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 4345007920 is about 65916.6740665820. The cubic root of 4345007920 is about 1631.7872075338.

The spelling of 4345007920 in words is "four billion, three hundred forty-five million, seven thousand, nine hundred twenty".