1426545640 has 64 divisors (see below), whose sum is σ = 3537072000. Its totient is φ = 514467072.

The previous prime is 1426545623. The next prime is 1426545671. The reversal of 1426545640 is 465456241.

It is a self number, because there is not a number n which added to its sum of digits gives 1426545640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9540 + ... + 54259.

It is an arithmetic number, because the mean of its divisors is an integer number (55266750).

Almost surely, 2^1426545640 is an apocalyptic number.

1426545640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1426545640 is an abundant number, since it is smaller than the sum of its proper divisors (2110526360).

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

1426545640 is a wasteful number, since it uses less digits than its factorization.

1426545640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63866 (or 63862 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 1426545640 is about 37769.6391298620. The cubic root of 1426545640 is about 1125.7152692543.

The spelling of 1426545640 in words is "one billion, four hundred twenty-six million, five hundred forty-five thousand, six hundred forty".