611728390 has 32 divisors (see below), whose sum is σ = 1355215680. Its totient is φ = 193601664.

The previous prime is 611728367. The next prime is 611728423. The reversal of 611728390 is 93827116.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 335205 + ... + 337024.

It is an arithmetic number, because the mean of its divisors is an integer number (42350490).

Almost surely, 2^611728390 is an apocalyptic number.

611728390 is an abundant number, since it is smaller than the sum of its proper divisors (743487290).

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

611728390 is a wasteful number, since it uses less digits than its factorization.

611728390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672256.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 611728390 is about 24733.1435527310. The cubic root of 611728390 is about 848.8928561245.

The spelling of 611728390 in words is "six hundred eleven million, seven hundred twenty-eight thousand, three hundred ninety".