1020347456 has 28 divisors (see below), whose sum is σ = 2026968768. Its totient is φ = 509615232.

The previous prime is 1020347417. The next prime is 1020347477. The reversal of 1020347456 is 6547430201.

It is a super-2 number, since 2×1020347456² = 2082217861931343872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53645 + ... + 70131.

Almost surely, 2^1020347456 is an apocalyptic number.

1020347456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1020347456 is a deficient number, since it is larger than the sum of its proper divisors (1006621312).

1020347456 is an equidigital number, since it uses as much as digits as its factorization.

1020347456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17466 (or 17456 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1020347456 is about 31942.8780168600. The cubic root of 1020347456 is about 1006.7369962900.

Adding to 1020347456 its reverse (6547430201), we get a palindrome (7567777657).

The spelling of 1020347456 in words is "one billion, twenty million, three hundred forty-seven thousand, four hundred fifty-six".