345442053 has 24 divisors (see below), whose sum is σ = 507842944. Its totient is φ = 208707840.

The previous prime is 345442049. The next prime is 345442079. The reversal of 345442053 is 350244543.

It is not a de Polignac number, because 345442053 - 2² = 345442049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345442053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345442003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131925 + ... + 134517.

Almost surely, 2^345442053 is an apocalyptic number.

345442053 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

345442053 is a deficient number, since it is larger than the sum of its proper divisors (162400891).

345442053 is a wasteful number, since it uses less digits than its factorization.

345442053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2974 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 345442053 is about 18586.0714783948. The cubic root of 345442053 is about 701.6573335126.

Adding to 345442053 its reverse (350244543), we get a palindrome (695686596).

The spelling of 345442053 in words is "three hundred forty-five million, four hundred forty-two thousand, fifty-three".