1526401656 has 48 divisors (see below), whose sum is σ = 4452007560. Its totient is φ = 469661760.

The previous prime is 1526401649. The next prime is 1526401699. The reversal of 1526401656 is 6561046251.

1526401656 is a `hidden beast` number, since 1 + 5 + 2 + 640 + 1 + 6 + 5 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1526401656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 814450 + ... + 816321.

Almost surely, 2^1526401656 is an apocalyptic number.

It is an amenable number.

1526401656 is an abundant number, since it is smaller than the sum of its proper divisors (2925605904).

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

1526401656 is a wasteful number, since it uses less digits than its factorization.

1526401656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630796 (or 1630789 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1526401656 is about 39069.1906238151. The cubic root of 1526401656 is about 1151.3912980734.

The spelling of 1526401656 in words is "one billion, five hundred twenty-six million, four hundred one thousand, six hundred fifty-six".