611420406 has 32 divisors (see below), whose sum is σ = 1246911840. Its totient is φ = 199828224.

The previous prime is 611420401. The next prime is 611420417. The reversal of 611420406 is 604024116.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611420401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71740 + ... + 79808.

It is an arithmetic number, because the mean of its divisors is an integer number (38965995).

Almost surely, 2^611420406 is an apocalyptic number.

611420406 is an abundant number, since it is smaller than the sum of its proper divisors (635491434).

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

611420406 is a wasteful number, since it uses less digits than its factorization.

611420406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8320.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 611420406 is about 24726.9166294546. The cubic root of 611420406 is about 848.7503695187.

The spelling of 611420406 in words is "six hundred eleven million, four hundred twenty thousand, four hundred six".