1238540952 has 32 divisors (see below), whose sum is σ = 3377839680. Its totient is φ = 375315360.

The previous prime is 1238540909. The next prime is 1238540981. The reversal of 1238540952 is 2590458321.

It is a self number, because there is not a number n which added to its sum of digits gives 1238540952.

It is a congruent number.

It is an unprimeable number.

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, 2345458 + ... + 2345985.

It is an arithmetic number, because the mean of its divisors is an integer number (105557490).

Almost surely, 2^1238540952 is an apocalyptic number.

1238540952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1238540952 is an abundant number, since it is smaller than the sum of its proper divisors (2139298728).

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

1238540952 is a wasteful number, since it uses less digits than its factorization.

1238540952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691463 (or 4691459 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1238540952 is about 35192.9105360725. The cubic root of 1238540952 is about 1073.9155321285.

The spelling of 1238540952 in words is "one billion, two hundred thirty-eight million, five hundred forty thousand, nine hundred fifty-two".