1266038562 has 16 divisors (see below), whose sum is σ = 2566764000. Its totient is φ = 416231712.

The previous prime is 1266038561. The next prime is 1266038563. The reversal of 1266038562 is 2658306621.

1266038562 is digitally balanced in base 4, 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 (1266038561) and next prime (1266038563).

It is a self number, because there is not a number n which added to its sum of digits gives 1266038562.

It is not an unprimeable number, because it can be changed into a prime (1266038561) 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, 1444812 + ... + 1445687.

It is an arithmetic number, because the mean of its divisors is an integer number (160422750).

Almost surely, 2^1266038562 is an apocalyptic number.

1266038562 is an abundant number, since it is smaller than the sum of its proper divisors (1300725438).

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

1266038562 is a wasteful number, since it uses less digits than its factorization.

1266038562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890577.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1266038562 is about 35581.4356371409. The cubic root of 1266038562 is about 1081.8049840834.

The spelling of 1266038562 in words is "one billion, two hundred sixty-six million, thirty-eight thousand, five hundred sixty-two".