1020345446 has 4 divisors (see below), whose sum is σ = 1530518172. Its totient is φ = 510172722.

The previous prime is 1020345437. The next prime is 1020345497. The reversal of 1020345446 is 6445430201.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1020345446² = 2082209658345877832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255086360 + ... + 255086363.

It is an arithmetic number, because the mean of its divisors is an integer number (382629543).

Almost surely, 2^1020345446 is an apocalyptic number.

1020345446 is a deficient number, since it is larger than the sum of its proper divisors (510172726).

1020345446 is an equidigital number, since it uses as much as digits as its factorization.

1020345446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510172725.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1020345446 is about 31942.8465544322. The cubic root of 1020345446 is about 1006.7363352268.

Adding to 1020345446 its reverse (6445430201), we get a palindrome (7465775647).

The spelling of 1020345446 in words is "one billion, twenty million, three hundred forty-five thousand, four hundred forty-six".