1201534488 has 192 divisors, whose sum is σ = 4140864000. Its totient is φ = 312016320.

The previous prime is 1201534459. The next prime is 1201534511. The reversal of 1201534488 is 8844351021.

1201534488 is a `hidden beast` number, since 1 + 20 + 153 + 4 + 488 = 666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269445 + ... + 273867.

It is an arithmetic number, because the mean of its divisors is an integer number (21567000).

Almost surely, 2^1201534488 is an apocalyptic number.

1201534488 is a gapful number since it is divisible by the number (18) 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 1201534488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2070432000).

1201534488 is an abundant number, since it is smaller than the sum of its proper divisors (2939329512).

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

1201534488 is a wasteful number, since it uses less digits than its factorization.

1201534488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467 (or 4446 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 1201534488 is about 34663.1575018780. The cubic root of 1201534488 is about 1063.1113309222. Note that the first 3 decimals are identical.

The spelling of 1201534488 in words is "one billion, two hundred one million, five hundred thirty-four thousand, four hundred eighty-eight".