1241951388 has 48 divisors (see below), whose sum is σ = 3167345664. Its totient is φ = 377061120.

The previous prime is 1241951363. The next prime is 1241951393. The reversal of 1241951388 is 8831591421.

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 15 ways as a sum of consecutive naturals, for example, 91870 + ... + 104517.

It is an arithmetic number, because the mean of its divisors is an integer number (65986368).

Almost surely, 2^1241951388 is an apocalyptic number.

It is an amenable number.

1241951388 is an abundant number, since it is smaller than the sum of its proper divisors (1925394276).

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

1241951388 is a wasteful number, since it uses less digits than its factorization.

1241951388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196442 (or 196440 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 1241951388 is about 35241.3306786222. The cubic root of 1241951388 is about 1074.9003370378.

The spelling of 1241951388 in words is "one billion, two hundred forty-one million, nine hundred fifty-one thousand, three hundred eighty-eight".