1201796736 has 192 divisors, whose sum is σ = 3876310080. Its totient is φ = 328323072.

The previous prime is 1201796731. The next prime is 1201796749. The reversal of 1201796736 is 6376971021.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1201796731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 431380 + ... + 434156.

It is an arithmetic number, because the mean of its divisors is an integer number (20189115).

Almost surely, 2^1201796736 is an apocalyptic number.

1201796736 is a gapful number since it is divisible by the number (16) 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 1201796736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1938155040).

1201796736 is an abundant number, since it is smaller than the sum of its proper divisors (2674513344).

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

1201796736 is a wasteful number, since it uses less digits than its factorization.

1201796736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831 (or 2812 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 1201796736 is about 34666.9401014857. The cubic root of 1201796736 is about 1063.1886705080.

The spelling of 1201796736 in words is "one billion, two hundred one million, seven hundred ninety-six thousand, seven hundred thirty-six".