1056420636 has 24 divisors (see below), whose sum is σ = 2572155264. Its totient is φ = 336829680.

The previous prime is 1056420623. The next prime is 1056420641. The reversal of 1056420636 is 6360246501.

It is a super-3 number, since 3×1056420636³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1056420597 and 1056420606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913530 + ... + 1914081.

It is an arithmetic number, because the mean of its divisors is an integer number (107173136).

Almost surely, 2^1056420636 is an apocalyptic number.

It is an amenable number.

1056420636 is an abundant number, since it is smaller than the sum of its proper divisors (1515734628).

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

1056420636 is a wasteful number, since it uses less digits than its factorization.

1056420636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827641 (or 3827639 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1056420636 is about 32502.6250632160. The cubic root of 1056420636 is about 1018.4638661157.

The spelling of 1056420636 in words is "one billion, fifty-six million, four hundred twenty thousand, six hundred thirty-six".