1427434866 has 256 divisors, whose sum is σ = 3948134400. Its totient is φ = 376358400.

The previous prime is 1427434859. The next prime is 1427434927. The reversal of 1427434866 is 6684347241.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (774144) is a multiple of the sum of its prime divisors (216).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16038550 + ... + 16038638.

It is an arithmetic number, because the mean of its divisors is an integer number (15422400).

Almost surely, 2^1427434866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427434866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1974067200).

1427434866 is an abundant number, since it is smaller than the sum of its proper divisors (2520699534).

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

1427434866 is a wasteful number, since it uses less digits than its factorization.

1427434866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 216 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 1427434866 is about 37781.4089996654. The cubic root of 1427434866 is about 1125.9491225893.

The spelling of 1427434866 in words is "one billion, four hundred twenty-seven million, four hundred thirty-four thousand, eight hundred sixty-six".