345663444 has 36 divisors (see below), whose sum is σ = 938230944. Its totient is φ = 98760816.

The previous prime is 345663419. The next prime is 345663449. The reversal of 345663444 is 444366543.

It is a super-2 number, since 2×345663444² = 238966433035882272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345663449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293344 + ... + 294519.

Almost surely, 2^345663444 is an apocalyptic number.

It is an amenable number.

345663444 is an abundant number, since it is smaller than the sum of its proper divisors (592567500).

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

345663444 is a wasteful number, since it uses less digits than its factorization.

345663444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587884 (or 587875 counting only the distinct ones).

The product of its digits is 414720, while the sum is 39.

The square root of 345663444 is about 18592.0263554030. The cubic root of 345663444 is about 701.8071969930.

The spelling of 345663444 in words is "three hundred forty-five million, six hundred sixty-three thousand, four hundred forty-four".