1040220340 has 24 divisors (see below), whose sum is σ = 2190182400. Its totient is φ = 414998688.

The previous prime is 1040220319. The next prime is 1040220367. The reversal of 1040220340 is 430220401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60240 + ... + 75559.

It is an arithmetic number, because the mean of its divisors is an integer number (91257600).

Almost surely, 2^1040220340 is an apocalyptic number.

1040220340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040220340 is an abundant number, since it is smaller than the sum of its proper divisors (1149962060).

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

1040220340 is a wasteful number, since it uses less digits than its factorization.

1040220340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136191 (or 136189 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1040220340 is about 32252.4470389457. The cubic root of 1040220340 is about 1013.2309499033.

Adding to 1040220340 its reverse (430220401), we get a palindrome (1470440741).

The spelling of 1040220340 in words is "one billion, forty million, two hundred twenty thousand, three hundred forty".