1420406266 has 4 divisors (see below), whose sum is σ = 2130609402. Its totient is φ = 710203132.

The previous prime is 1420406263. The next prime is 1420406303. The reversal of 1420406266 is 6626040241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1110822241 + 309584025 = 33329^2 + 17595^2 .

It is not an unprimeable number, because it can be changed into a prime (1420406261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355101565 + ... + 355101568.

Almost surely, 2^1420406266 is an apocalyptic number.

1420406266 is a deficient number, since it is larger than the sum of its proper divisors (710203136).

1420406266 is an equidigital number, since it uses as much as digits as its factorization.

1420406266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710203135.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1420406266 is about 37688.2775674347. The cubic root of 1420406266 is about 1124.0980467107.

The spelling of 1420406266 in words is "one billion, four hundred twenty million, four hundred six thousand, two hundred sixty-six".