340201920 has 56 divisors (see below), whose sum is σ = 1080144144. Its totient is φ = 90720256.

The previous prime is 340201913. The next prime is 340201931. The reversal of 340201920 is 29102043.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176229 + ... + 178148.

Almost surely, 2^340201920 is an apocalyptic number.

340201920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340201920 is an abundant number, since it is smaller than the sum of its proper divisors (739942224).

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

340201920 is a wasteful number, since it uses less digits than its factorization.

340201920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354397 (or 354387 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 340201920 is about 18444.5634266577. The cubic root of 340201920 is about 698.0913447120.

Adding to 340201920 its reverse (29102043), we get a palindrome (369303963).

The spelling of 340201920 in words is "three hundred forty million, two hundred one thousand, nine hundred twenty".