1201032240 has 80 divisors (see below), whose sum is σ = 3735403776. Its totient is φ = 319225600.

The previous prime is 1201032227. The next prime is 1201032251. The reversal of 1201032240 is 422301021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 66595 + ... + 82685.

Almost surely, 2^1201032240 is an apocalyptic number.

1201032240 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 1201032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867701888).

1201032240 is an abundant number, since it is smaller than the sum of its proper divisors (2534371536).

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

1201032240 is a wasteful number, since it uses less digits than its factorization.

1201032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16418 (or 16412 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1201032240 is about 34655.9120497499. The cubic root of 1201032240 is about 1062.9631814905.

Adding to 1201032240 its reverse (422301021), we get a palindrome (1623333261).

The spelling of 1201032240 in words is "one billion, two hundred one million, thirty-two thousand, two hundred forty".