20034345 has 32 divisors (see below), whose sum is σ = 33264000. Its totient is φ = 10289664.

The previous prime is 20034337. The next prime is 20034373. The reversal of 20034345 is 54343002.

It is a happy number.

It is not a de Polignac number, because 20034345 - 2³ = 20034337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57231 + ... + 57579.

It is an arithmetic number, because the mean of its divisors is an integer number (1039500).

Almost surely, 2^20034345 is an apocalyptic number.

It is an amenable number.

20034345 is a deficient number, since it is larger than the sum of its proper divisors (13229655).

20034345 is a wasteful number, since it uses less digits than its factorization.

20034345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20034345 is about 4475.9741956361. The cubic root of 20034345 is about 271.5970505918.

Adding to 20034345 its reverse (54343002), we get a palindrome (74377347).

The spelling of 20034345 in words is "twenty million, thirty-four thousand, three hundred forty-five".