1925401266 has 56 divisors (see below), whose sum is σ = 4584947004. Its totient is φ = 604039680.

The previous prime is 1925401259. The next prime is 1925401267. The reversal of 1925401266 is 6621045291.

1925401266 is a `hidden beast` number, since 1 + 92 + 540 + 1 + 26 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1925015625 + 385641 = 43875^2 + 621^2 .

It is a super-2 number, since 2×1925401266² = 7414340070228805512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1925401266.

It is not an unprimeable number, because it can be changed into a prime (1925401267) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 14055 + ... + 63626.

Almost surely, 2^1925401266 is an apocalyptic number.

1925401266 is an abundant number, since it is smaller than the sum of its proper divisors (2659545738).

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

1925401266 is an equidigital number, since it uses as much as digits as its factorization.

1925401266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77718 (or 77703 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1925401266 is about 43879.3945491503. The cubic root of 1925401266 is about 1244.0573965550.

The spelling of 1925401266 in words is "one billion, nine hundred twenty-five million, four hundred one thousand, two hundred sixty-six".