485342781 has 16 divisors (see below), whose sum is σ = 806803968. Its totient is φ = 252126000.

The previous prime is 485342773. The next prime is 485342807. The reversal of 485342781 is 187243584.

It is not a de Polignac number, because 485342781 - 2³ = 485342773 is a prime.

It is a super-2 number, since 2×485342781² = 471115230137627922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485342761) 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, 1050295 + ... + 1050756.

It is an arithmetic number, because the mean of its divisors is an integer number (50425248).

Almost surely, 2^485342781 is an apocalyptic number.

It is an amenable number.

485342781 is a deficient number, since it is larger than the sum of its proper divisors (321461187).

485342781 is a wasteful number, since it uses less digits than its factorization.

485342781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101072.

The product of its digits is 215040, while the sum is 42.

The square root of 485342781 is about 22030.4966126504. The cubic root of 485342781 is about 785.8678548831.

It can be divided in two parts, 48534 and 2781, that added together give a palindrome (51315).

The spelling of 485342781 in words is "four hundred eighty-five million, three hundred forty-two thousand, seven hundred eighty-one".