1042504240 has 80 divisors (see below), whose sum is σ = 2476859328. Its totient is φ = 407973888.

The previous prime is 1042504201. The next prime is 1042504247. The reversal of 1042504240 is 424052401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1042504247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799429 + ... + 800731.

Almost surely, 2^1042504240 is an apocalyptic number.

1042504240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042504240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238429664).

1042504240 is an abundant number, since it is smaller than the sum of its proper divisors (1434355088).

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

1042504240 is a wasteful number, since it uses less digits than its factorization.

1042504240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1520 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1042504240 is about 32287.8342413981. The cubic root of 1042504240 is about 1013.9719552846.

Adding to 1042504240 its reverse (424052401), we get a palindrome (1466556641).

The spelling of 1042504240 in words is "one billion, forty-two million, five hundred four thousand, two hundred forty".