545769290 has 48 divisors (see below), whose sum is σ = 1085114016. Its totient is φ = 197487840.

The previous prime is 545769251. The next prime is 545769307. The reversal of 545769290 is 92967545.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 273677 + ... + 275663.

It is an arithmetic number, because the mean of its divisors is an integer number (22606542).

Almost surely, 2^545769290 is an apocalyptic number.

545769290 is a deficient number, since it is larger than the sum of its proper divisors (539344726).

545769290 is a wasteful number, since it uses less digits than its factorization.

545769290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2232 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 545769290 is about 23361.7056312248. The cubic root of 545769290 is about 817.2150665267.

It can be divided in two parts, 5457 and 69290, that added together give a palindrome (74747).

The spelling of 545769290 in words is "five hundred forty-five million, seven hundred sixty-nine thousand, two hundred ninety".