1022046645 has 16 divisors (see below), whose sum is σ = 1654978752. Its totient is φ = 538523520.

The previous prime is 1022046617. The next prime is 1022046659. The reversal of 1022046645 is 5466402201.

It is not a de Polignac number, because 1022046645 - 2⁶ = 1022046581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409216 + ... + 411705.

It is an arithmetic number, because the mean of its divisors is an integer number (103436172).

Almost surely, 2^1022046645 is an apocalyptic number.

1022046645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022046645 is a deficient number, since it is larger than the sum of its proper divisors (632932107).

1022046645 is an equidigital number, since it uses as much as digits as its factorization.

1022046645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821012.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1022046645 is about 31969.4642588830. The cubic root of 1022046645 is about 1007.2955275109.

Adding to 1022046645 its reverse (5466402201), we get a palindrome (6488448846).

Subtracting 1022046645 from its reverse (5466402201), we obtain a square (4444355556 = 66666²).

It can be divided in two parts, 10220 and 46645, that added together give a palindrome (56865).

The spelling of 1022046645 in words is "one billion, twenty-two million, forty-six thousand, six hundred forty-five".