1201841720 has 16 divisors (see below), whose sum is σ = 2704143960. Its totient is φ = 480736672.

The previous prime is 1201841717. The next prime is 1201841749. The reversal of 1201841720 is 271481021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201841720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15022982 + ... + 15023061.

Almost surely, 2^1201841720 is an apocalyptic number.

1201841720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201841720 is an abundant number, since it is smaller than the sum of its proper divisors (1502302240).

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

1201841720 is a wasteful number, since it uses less digits than its factorization.

1201841720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30046054 (or 30046050 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 1201841720 is about 34667.5888979894. The cubic root of 1201841720 is about 1063.2019356138.

The spelling of 1201841720 in words is "one billion, two hundred one million, eight hundred forty-one thousand, seven hundred twenty".