340555590 has 40 divisors (see below), whose sum is σ = 915718320. Its totient is φ = 90814608.

The previous prime is 340555519. The next prime is 340555609. The reversal of 340555590 is 95555043.

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 19 ways as a sum of consecutive naturals, for example, 209410 + ... + 211029.

It is an arithmetic number, because the mean of its divisors is an integer number (22892958).

Almost surely, 2^340555590 is an apocalyptic number.

340555590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340555590 is an abundant number, since it is smaller than the sum of its proper divisors (575162730).

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

340555590 is a wasteful number, since it uses less digits than its factorization.

340555590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420458 (or 420449 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 340555590 is about 18454.1483141325. The cubic root of 340555590 is about 698.3331701738. Note that the first 3 decimals are identical.

The spelling of 340555590 in words is "three hundred forty million, five hundred fifty-five thousand, five hundred ninety".