1040252540 has 24 divisors (see below), whose sum is σ = 2185551312. Its totient is φ = 415906560.

The previous prime is 1040252539. The next prime is 1040252561. The reversal of 1040252540 is 452520401.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36452 + ... + 58388.

It is an arithmetic number, because the mean of its divisors is an integer number (91064638).

Almost surely, 2^1040252540 is an apocalyptic number.

1040252540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040252540 is an abundant number, since it is smaller than the sum of its proper divisors (1145298772).

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

1040252540 is a wasteful number, since it uses less digits than its factorization.

1040252540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24317 (or 24315 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1040252540 is about 32252.9462220120. The cubic root of 1040252540 is about 1013.2414046434.

Adding to 1040252540 its reverse (452520401), we get a palindrome (1492772941).

The spelling of 1040252540 in words is "one billion, forty million, two hundred fifty-two thousand, five hundred forty".