345503445 has 16 divisors (see below), whose sum is σ = 631777920. Its totient is φ = 157944384.

The previous prime is 345503423. The next prime is 345503471. The reversal of 345503445 is 544305543.

It is not a de Polignac number, because 345503445 - 2⁵ = 345503413 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645150 + ... + 1645359.

It is an arithmetic number, because the mean of its divisors is an integer number (39486120).

Almost surely, 2^345503445 is an apocalyptic number.

345503445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345503445 is a deficient number, since it is larger than the sum of its proper divisors (286274475).

345503445 is a wasteful number, since it uses less digits than its factorization.

345503445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290524.

The product of its (nonzero) digits is 72000, while the sum is 33.

The square root of 345503445 is about 18587.7229643655. The cubic root of 345503445 is about 701.6988972569.

Adding to 345503445 its reverse (544305543), we get a palindrome (889808988).

The spelling of 345503445 in words is "three hundred forty-five million, five hundred three thousand, four hundred forty-five".