1253818434 has 16 divisors (see below), whose sum is σ = 2735604000. Its totient is φ = 379944960.

The previous prime is 1253818429. The next prime is 1253818439. The reversal of 1253818434 is 4348183521.

It is an interprime number because it is at equal distance from previous prime (1253818429) and next prime (1253818439).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1253818392 and 1253818401.

It is not an unprimeable number, because it can be changed into a prime (1253818439) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9498559 + ... + 9498690.

It is an arithmetic number, because the mean of its divisors is an integer number (170975250).

Almost surely, 2^1253818434 is an apocalyptic number.

1253818434 is an abundant number, since it is smaller than the sum of its proper divisors (1481785566).

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

1253818434 is a wasteful number, since it uses less digits than its factorization.

1253818434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18997265.

The product of its digits is 92160, while the sum is 39.

The square root of 1253818434 is about 35409.2986939871. The cubic root of 1253818434 is about 1078.3131055712.

The spelling of 1253818434 in words is "one billion, two hundred fifty-three million, eight hundred eighteen thousand, four hundred thirty-four".