1240229688 has 16 divisors (see below), whose sum is σ = 3100574280. Its totient is φ = 413409888.

The previous prime is 1240229687. The next prime is 1240229699. The reversal of 1240229688 is 8869220421.

1240229688 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240229687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25838095 + ... + 25838142.

Almost surely, 2^1240229688 is an apocalyptic number.

It is an amenable number.

1240229688 is an abundant number, since it is smaller than the sum of its proper divisors (1860344592).

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

1240229688 is a wasteful number, since it uses less digits than its factorization.

1240229688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51676246 (or 51676242 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1240229688 is about 35216.8949227498. The cubic root of 1240229688 is about 1074.4034008542.

The spelling of 1240229688 in words is "one billion, two hundred forty million, two hundred twenty-nine thousand, six hundred eighty-eight".