1238285052 has 36 divisors (see below), whose sum is σ = 3154767616. Its totient is φ = 409510080.

The previous prime is 1238285039. The next prime is 1238285053. The reversal of 1238285052 is 2505828321.

1238285052 is a `hidden beast` number, since 123 + 8 + 28 + 505 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1238284998 and 1238285016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238285053) 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 11 ways as a sum of consecutive naturals, for example, 130849 + ... + 139992.

Almost surely, 2^1238285052 is an apocalyptic number.

1238285052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1238285052 is an abundant number, since it is smaller than the sum of its proper divisors (1916482564).

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

1238285052 is a wasteful number, since it uses less digits than its factorization.

1238285052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270978 (or 270973 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1238285052 is about 35189.2746728318. The cubic root of 1238285052 is about 1073.8415650106.

The spelling of 1238285052 in words is "one billion, two hundred thirty-eight million, two hundred eighty-five thousand, fifty-two".