1056456406 has 8 divisors (see below), whose sum is σ = 1585152864. Its totient is φ = 528072120.

The previous prime is 1056456403. The next prime is 1056456437. The reversal of 1056456406 is 6046546501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1056456406³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056456403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69390 + ... + 83233.

It is an arithmetic number, because the mean of its divisors is an integer number (198144108).

Almost surely, 2^1056456406 is an apocalyptic number.

1056456406 is a deficient number, since it is larger than the sum of its proper divisors (528696458).

1056456406 is a wasteful number, since it uses less digits than its factorization.

1056456406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156086.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1056456406 is about 32503.1753218051. The cubic root of 1056456406 is about 1018.4753609188.

The spelling of 1056456406 in words is "one billion, fifty-six million, four hundred fifty-six thousand, four hundred six".