1040220642 has 16 divisors (see below), whose sum is σ = 2080779552. Its totient is φ = 346683840.

The previous prime is 1040220641. The next prime is 1040220647. The reversal of 1040220642 is 2460220401.

It is not an unprimeable number, because it can be changed into a prime (1040220641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44842 + ... + 63962.

It is an arithmetic number, because the mean of its divisors is an integer number (130048722).

Almost surely, 2^1040220642 is an apocalyptic number.

1040220642 is an abundant number, since it is smaller than the sum of its proper divisors (1040558910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040220642 is a wasteful number, since it uses less digits than its factorization.

1040220642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28193.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1040220642 is about 32252.4517207607. The cubic root of 1040220642 is about 1013.2310479581.

The spelling of 1040220642 in words is "one billion, forty million, two hundred twenty thousand, six hundred forty-two".