1040220345 has 32 divisors (see below), whose sum is σ = 1725594624. Its totient is φ = 534528000.

The previous prime is 1040220319. The next prime is 1040220367. The reversal of 1040220345 is 5430220401.

It is not a de Polignac number, because 1040220345 - 2⁶ = 1040220281 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 103545 + ... + 113145.

It is an arithmetic number, because the mean of its divisors is an integer number (53924832).

Almost surely, 2^1040220345 is an apocalyptic number.

1040220345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040220345 is a deficient number, since it is larger than the sum of its proper divisors (685374279).

1040220345 is a wasteful number, since it uses less digits than its factorization.

1040220345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1040220345 is about 32252.4471164592. The cubic root of 1040220345 is about 1013.2309515267.

Adding to 1040220345 its reverse (5430220401), we get a palindrome (6470440746).

The spelling of 1040220345 in words is "one billion, forty million, two hundred twenty thousand, three hundred forty-five".