262645040 has 40 divisors (see below), whose sum is σ = 697886880. Its totient is φ = 90049536.

The previous prime is 262645007. The next prime is 262645043. The reversal of 262645040 is 40546262.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 262644994 and 262645012.

It is not an unprimeable number, because it can be changed into a prime (262645043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233945 + ... + 235064.

It is an arithmetic number, because the mean of its divisors is an integer number (17447172).

Almost surely, 2^262645040 is an apocalyptic number.

262645040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

262645040 is an abundant number, since it is smaller than the sum of its proper divisors (435241840).

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

262645040 is a wasteful number, since it uses less digits than its factorization.

262645040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469029 (or 469023 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 262645040 is about 16206.3271594769. The cubic root of 262645040 is about 640.4074878933.

The spelling of 262645040 in words is "two hundred sixty-two million, six hundred forty-five thousand, forty".