561406262 has 12 divisors (see below), whose sum is σ = 888764796. Its totient is φ = 265928940.

The previous prime is 561406259. The next prime is 561406267. The reversal of 561406262 is 262604165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561406267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 388064 + ... + 389507.

It is an arithmetic number, because the mean of its divisors is an integer number (74063733).

Almost surely, 2^561406262 is an apocalyptic number.

561406262 is a deficient number, since it is larger than the sum of its proper divisors (327358534).

561406262 is a wasteful number, since it uses less digits than its factorization.

561406262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777611 (or 777592 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 561406262 is about 23694.0132100917. The cubic root of 561406262 is about 824.9464364367.

The spelling of 561406262 in words is "five hundred sixty-one million, four hundred six thousand, two hundred sixty-two".