1042434440 has 32 divisors (see below), whose sum is σ = 2348219160. Its totient is φ = 416486400.

The previous prime is 1042434431. The next prime is 1042434499. The reversal of 1042434440 is 444342401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 791972164 + 250462276 = 28142^2 + 15826^2 .

It is a super-2 number, since 2×1042434440² = 2173339123396227200, which contains 22 as substring.

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, 20450 + ... + 50030.

Almost surely, 2^1042434440 is an apocalyptic number.

1042434440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042434440 is an abundant number, since it is smaller than the sum of its proper divisors (1305784720).

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

1042434440 is a wasteful number, since it uses less digits than its factorization.

1042434440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30473 (or 30469 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1042434440 is about 32286.7533208280. The cubic root of 1042434440 is about 1013.9493248980.

Adding to 1042434440 its reverse (444342401), we get a palindrome (1486776841).

The spelling of 1042434440 in words is "one billion, forty-two million, four hundred thirty-four thousand, four hundred forty".