1266363396 has 63 divisors (see below), whose sum is σ = 3327733591. Its totient is φ = 421480584.

The previous prime is 1266363383. The next prime is 1266363409. The reversal of 1266363396 is 6933636621.

The square root of 1266363396 is 35586.

It is a perfect power (a square), and thus also a powerful number.

1266363396 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 3 + 633 + 9 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1266363383) and next prime (1266363409).

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1921315 + ... + 1921973.

Almost surely, 2^1266363396 is an apocalyptic number.

1266363396 is the 35586-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266363396

1266363396 is an abundant number, since it is smaller than the sum of its proper divisors (2061370195).

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

1266363396 is an frugal number, since it uses more digits than its factorization.

1266363396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 664 counting only the distinct ones).

The product of its digits is 629856, while the sum is 45.

The cubic root of 1266363396 is about 1081.8974975873.

The spelling of 1266363396 in words is "one billion, two hundred sixty-six million, three hundred sixty-three thousand, three hundred ninety-six".