1426640526 has 40 divisors (see below), whose sum is σ = 3198886680. Its totient is φ = 475226352.

The previous prime is 1426640503. The next prime is 1426640531. The reversal of 1426640526 is 6250466241.

1426640526 is a `hidden beast` number, since 1 + 4 + 2 + 6 + 640 + 5 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 471045 + ... + 474063.

It is an arithmetic number, because the mean of its divisors is an integer number (79972167).

Almost surely, 2^1426640526 is an apocalyptic number.

1426640526 is an abundant number, since it is smaller than the sum of its proper divisors (1772246154).

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

1426640526 is a wasteful number, since it uses less digits than its factorization.

1426640526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950 (or 5941 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 1426640526 is about 37770.8952237037. The cubic root of 1426640526 is about 1125.7402275049.

The spelling of 1426640526 in words is "one billion, four hundred twenty-six million, six hundred forty thousand, five hundred twenty-six".