34890345 has 80 divisors (see below), whose sum is σ = 73970688. Its totient is φ = 15396480.

The previous prime is 34890343. The next prime is 34890367. The reversal of 34890345 is 54309843.

It is not a de Polignac number, because 34890345 - 2¹ = 34890343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34890343) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 87687 + ... + 88083.

Almost surely, 2^34890345 is an apocalyptic number.

34890345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34890345 is an abundant number, since it is smaller than the sum of its proper divisors (39080343).

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

34890345 is a wasteful number, since it uses less digits than its factorization.

34890345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 34890345 is about 5906.8049739263. The cubic root of 34890345 is about 326.7646652853.

The spelling of 34890345 in words is "thirty-four million, eight hundred ninety thousand, three hundred forty-five".