901132020 has 96 divisors (see below), whose sum is σ = 2809779840. Its totient is φ = 239765760.

The previous prime is 901132013. The next prime is 901132021. The reversal of 901132020 is 20231109.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 901131984 and 901132002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901132021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279739 + ... + 282941.

It is an arithmetic number, because the mean of its divisors is an integer number (29268540).

Almost surely, 2^901132020 is an apocalyptic number.

901132020 is a gapful number since it is divisible by the number (90) 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 901132020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1404889920).

901132020 is an abundant number, since it is smaller than the sum of its proper divisors (1908647820).

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

901132020 is a wasteful number, since it uses less digits than its factorization.

901132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742 (or 3734 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 901132020 is about 30018.8610710000. The cubic root of 901132020 is about 965.8940125220.

Adding to 901132020 its reverse (20231109), we get a palindrome (921363129).

The spelling of 901132020 in words is "nine hundred one million, one hundred thirty-two thousand, twenty".