1426665426 has 64 divisors (see below), whose sum is σ = 3061255680. Its totient is φ = 441936000.

The previous prime is 1426665421. The next prime is 1426665473. The reversal of 1426665426 is 6245666241.

It is a super-2 number, since 2×1426665426² = 4070748475487522952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1426665421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2088481 + ... + 2089163.

It is an arithmetic number, because the mean of its divisors is an integer number (47832120).

Almost surely, 2^1426665426 is an apocalyptic number.

1426665426 is an abundant number, since it is smaller than the sum of its proper divisors (1634590254).

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

1426665426 is a wasteful number, since it uses less digits than its factorization.

1426665426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031.

The product of its digits is 414720, while the sum is 42.

The square root of 1426665426 is about 37771.2248411406. The cubic root of 1426665426 is about 1125.7467768699.

The spelling of 1426665426 in words is "one billion, four hundred twenty-six million, six hundred sixty-five thousand, four hundred twenty-six".