345140120 has 64 divisors (see below), whose sum is σ = 885517920. Its totient is φ = 119937024.

The previous prime is 345140101. The next prime is 345140123. The reversal of 345140120 is 21041543.

It is a super-2 number, since 2×345140120² = 238243404867228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 345140092 and 345140101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345140123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10682 + ... + 28361.

Almost surely, 2^345140120 is an apocalyptic number.

It is an amenable number.

345140120 is an abundant number, since it is smaller than the sum of its proper divisors (540377800).

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

345140120 is a wasteful number, since it uses less digits than its factorization.

345140120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39084 (or 39080 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 345140120 is about 18577.9471417054. The cubic root of 345140120 is about 701.4528464839.

Adding to 345140120 its reverse (21041543), we get a palindrome (366181663).

The spelling of 345140120 in words is "three hundred forty-five million, one hundred forty thousand, one hundred twenty".