1426133808 has 240 divisors, whose sum is σ = 4650452352. Its totient is φ = 403200000.

The previous prime is 1426133801. The next prime is 1426133869. The reversal of 1426133808 is 8083316241.

1426133808 is a `hidden beast` number, since 1 + 4 + 2 + 613 + 38 + 0 + 8 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1426133801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5681683 + ... + 5681933.

Almost surely, 2^1426133808 is an apocalyptic number.

1426133808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1426133808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2325226176).

1426133808 is an abundant number, since it is smaller than the sum of its proper divisors (3224318544).

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

1426133808 is a wasteful number, since it uses less digits than its factorization.

1426133808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1426133808 is about 37764.1868441517. The cubic root of 1426133808 is about 1125.6069305799.

The spelling of 1426133808 in words is "one billion, four hundred twenty-six million, one hundred thirty-three thousand, eight hundred eight".