1042534440 has 48 divisors (see below), whose sum is σ = 3388238100. Its totient is φ = 278009088.

The previous prime is 1042534439. The next prime is 1042534457. The reversal of 1042534440 is 444352401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 964847844 + 77686596 = 31062^2 + 8814^2 .

It is a super-2 number, since 2×1042534440² = 2173756117172227200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1447605 + ... + 1448324.

Almost surely, 2^1042534440 is an apocalyptic number.

1042534440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042534440 is an abundant number, since it is smaller than the sum of its proper divisors (2345703660).

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

1042534440 is a wasteful number, since it uses less digits than its factorization.

1042534440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895946 (or 2895939 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1042534440 is about 32288.3019064181. The cubic root of 1042534440 is about 1013.9817463423.

Adding to 1042534440 its reverse (444352401), we get a palindrome (1486886841).

The spelling of 1042534440 in words is "one billion, forty-two million, five hundred thirty-four thousand, four hundred forty".