262420645 has 4 divisors (see below), whose sum is σ = 314904780. Its totient is φ = 209936512.

The previous prime is 262420643. The next prime is 262420651. The reversal of 262420645 is 546024262.

262420645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167806116 + 94614529 = 12954^2 + 9727^2 .

It is a cyclic number.

It is not a de Polignac number, because 262420645 - 2¹ = 262420643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262420643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26242060 + ... + 26242069.

It is an arithmetic number, because the mean of its divisors is an integer number (78726195).

Almost surely, 2^262420645 is an apocalyptic number.

It is an amenable number.

262420645 is a deficient number, since it is larger than the sum of its proper divisors (52484135).

262420645 is an equidigital number, since it uses as much as digits as its factorization.

262420645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52484134.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 262420645 is about 16199.4026124422. The cubic root of 262420645 is about 640.2250551277.

The spelling of 262420645 in words is "two hundred sixty-two million, four hundred twenty thousand, six hundred forty-five".