1056420454 has 8 divisors (see below), whose sum is σ = 1584800568. Its totient is φ = 528153600.

The previous prime is 1056420451. The next prime is 1056420467. The reversal of 1056420454 is 4540246501.

It is a happy number.

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

It is a super-2 number, since 2×1056420454² = 2232048351259132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056420451) 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, 1129 + ... + 45979.

It is an arithmetic number, because the mean of its divisors is an integer number (198100071).

Almost surely, 2^1056420454 is an apocalyptic number.

1056420454 is a deficient number, since it is larger than the sum of its proper divisors (528380114).

1056420454 is a wasteful number, since it uses less digits than its factorization.

1056420454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56630.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1056420454 is about 32502.6222634421. The cubic root of 1056420454 is about 1018.4638076288.

Adding to 1056420454 its reverse (4540246501), we get a palindrome (5596666955).

The spelling of 1056420454 in words is "one billion, fifty-six million, four hundred twenty thousand, four hundred fifty-four".