1241029440 has 168 divisors, whose sum is σ = 4878506880. Its totient is φ = 283659264.

The previous prime is 1241029411. The next prime is 1241029477. The reversal of 1241029440 is 449201421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10620 + ... + 50939.

Almost surely, 2^1241029440 is an apocalyptic number.

1241029440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241029440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2439253440).

1241029440 is an abundant number, since it is smaller than the sum of its proper divisors (3637477440).

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

1241029440 is a wasteful number, since it uses less digits than its factorization.

1241029440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61589 (or 61576 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1241029440 is about 35228.2477565944. The cubic root of 1241029440 is about 1074.6342913224.

The spelling of 1241029440 in words is "one billion, two hundred forty-one million, twenty-nine thousand, four hundred forty".