345078444 has 24 divisors (see below), whose sum is σ = 852547248. Its totient is φ = 108259840.

The previous prime is 345078443. The next prime is 345078449. The reversal of 345078444 is 444870543.

It is a super-2 number, since 2×345078444² = 238158265026922272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345078443) 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, 845577 + ... + 845984.

It is an arithmetic number, because the mean of its divisors is an integer number (35522802).

Almost surely, 2^345078444 is an apocalyptic number.

345078444 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

345078444 is an abundant number, since it is smaller than the sum of its proper divisors (507468804).

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

345078444 is a wasteful number, since it uses less digits than its factorization.

345078444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691585 (or 1691583 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 39.

The square root of 345078444 is about 18576.2871424836. The cubic root of 345078444 is about 701.4110611523.

The spelling of 345078444 in words is "three hundred forty-five million, seventy-eight thousand, four hundred forty-four".