1042405452 has 72 divisors (see below), whose sum is σ = 2878267392. Its totient is φ = 315468000.

The previous prime is 1042405381. The next prime is 1042405453. The reversal of 1042405452 is 2545042401.

It is not an unprimeable number, because it can be changed into a prime (1042405453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 454653 + ... + 456939.

It is an arithmetic number, because the mean of its divisors is an integer number (39975936).

Almost surely, 2^1042405452 is an apocalyptic number.

1042405452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1042405452 is an abundant number, since it is smaller than the sum of its proper divisors (1835861940).

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

1042405452 is a wasteful number, since it uses less digits than its factorization.

1042405452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3459 (or 3454 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1042405452 is about 32286.3044029508. The cubic root of 1042405452 is about 1013.9399261821.

Adding to 1042405452 its reverse (2545042401), we get a palindrome (3587447853).

The spelling of 1042405452 in words is "one billion, forty-two million, four hundred five thousand, four hundred fifty-two".