1241199036 has 144 divisors (see below), whose sum is σ = 4141912320. Its totient is φ = 303413760.

The previous prime is 1241199017. The next prime is 1241199041. The reversal of 1241199036 is 6309911421.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33955 + ... + 60293.

It is an arithmetic number, because the mean of its divisors is an integer number (28763280).

Almost surely, 2^1241199036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241199036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2070956160).

1241199036 is an abundant number, since it is smaller than the sum of its proper divisors (2900713284).

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

1241199036 is a wasteful number, since it uses less digits than its factorization.

1241199036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26384 (or 26379 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1241199036 is about 35230.6547767708. The cubic root of 1241199036 is about 1074.6832413768.

The spelling of 1241199036 in words is "one billion, two hundred forty-one million, one hundred ninety-nine thousand, thirty-six".