1442780253 has 24 divisors (see below), whose sum is σ = 2108021760. Its totient is φ = 950805600.

The previous prime is 1442780243. The next prime is 1442780299. The reversal of 1442780253 is 3520872441.

It is a happy number.

It is not a de Polignac number, because 1442780253 - 2⁴ = 1442780237 is a prime.

It is a super-2 number, since 2×1442780253² = 4163229716893488018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442780203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1001908 + ... + 1003346.

It is an arithmetic number, because the mean of its divisors is an integer number (87834240).

Almost surely, 2^1442780253 is an apocalyptic number.

It is an amenable number.

1442780253 is a deficient number, since it is larger than the sum of its proper divisors (665241507).

1442780253 is a wasteful number, since it uses less digits than its factorization.

1442780253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1442780253 is about 37983.9473067242. The cubic root of 1442780253 is about 1129.9695225027.

The spelling of 1442780253 in words is "one billion, four hundred forty-two million, seven hundred eighty thousand, two hundred fifty-three".