1401056560 has 20 divisors (see below), whose sum is σ = 3257456688. Its totient is φ = 560422592.

The previous prime is 1401056549. The next prime is 1401056567. The reversal of 1401056560 is 656501041.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1401056567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8756524 + ... + 8756683.

Almost surely, 2^1401056560 is an apocalyptic number.

1401056560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401056560 is an abundant number, since it is smaller than the sum of its proper divisors (1856400128).

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

1401056560 is a wasteful number, since it uses less digits than its factorization.

1401056560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17513220 (or 17513214 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1401056560 is about 37430.6900818032. The cubic root of 1401056560 is about 1118.9702908377.

The spelling of 1401056560 in words is "one billion, four hundred one million, fifty-six thousand, five hundred sixty".