345542090 has 16 divisors (see below), whose sum is σ = 630737280. Its totient is φ = 136269840.

The previous prime is 345542083. The next prime is 345542117. The reversal of 345542090 is 90245543.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242630 + ... + 244049.

It is an arithmetic number, because the mean of its divisors is an integer number (39421080).

Almost surely, 2^345542090 is an apocalyptic number.

345542090 is a deficient number, since it is larger than the sum of its proper divisors (285195190).

345542090 is a wasteful number, since it uses less digits than its factorization.

345542090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486757.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 345542090 is about 18588.7624655328. The cubic root of 345542090 is about 701.7250582530.

The spelling of 345542090 in words is "three hundred forty-five million, five hundred forty-two thousand, ninety".