1266980454 has 40 divisors (see below), whose sum is σ = 3005979768. Its totient is φ = 397483200.

The previous prime is 1266980453. The next prime is 1266980467. The reversal of 1266980454 is 4540896621.

It is a super-2 number, since 2×1266980454² = 3210478941636092232, 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 (1266980453) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 227272 + ... + 232779.

Almost surely, 2^1266980454 is an apocalyptic number.

1266980454 is an abundant number, since it is smaller than the sum of its proper divisors (1738999314).

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

1266980454 is a wasteful number, since it uses less digits than its factorization.

1266980454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460082 (or 460073 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 1266980454 is about 35594.6688985865. The cubic root of 1266980454 is about 1082.0731936277.

The spelling of 1266980454 in words is "one billion, two hundred sixty-six million, nine hundred eighty thousand, four hundred fifty-four".