1040242440 has 32 divisors (see below), whose sum is σ = 3120727680. Its totient is φ = 277397952.

The previous prime is 1040242433. The next prime is 1040242517. The reversal of 1040242440 is 442420401.

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, 4334224 + ... + 4334463.

It is an arithmetic number, because the mean of its divisors is an integer number (97522740).

Almost surely, 2^1040242440 is an apocalyptic number.

1040242440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040242440 is an abundant number, since it is smaller than the sum of its proper divisors (2080485240).

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

1040242440 is a wasteful number, since it uses less digits than its factorization.

1040242440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668701 (or 8668697 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 1040242440 is about 32252.7896467887. The cubic root of 1040242440 is about 1013.2381253848.

Adding to 1040242440 its reverse (442420401), we get a palindrome (1482662841).

The spelling of 1040242440 in words is "one billion, forty million, two hundred forty-two thousand, four hundred forty".