261626262 has 16 divisors (see below), whose sum is σ = 524938752. Its totient is φ = 86927720.

The previous prime is 261626251. The next prime is 261626273. The reversal of 261626262 is 262626162.

261626262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (261626251) and next prime (261626273).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68238 + ... + 71969.

It is an arithmetic number, because the mean of its divisors is an integer number (32808672).

Almost surely, 2^261626262 is an apocalyptic number.

261626262 is an abundant number, since it is smaller than the sum of its proper divisors (263312490).

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

261626262 is a wasteful number, since it uses less digits than its factorization.

261626262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140523.

The product of its digits is 20736, while the sum is 33.

The square root of 261626262 is about 16174.8651308133. The cubic root of 261626262 is about 639.5783860506.

The spelling of 261626262 in words is "two hundred sixty-one million, six hundred twenty-six thousand, two hundred sixty-two".