901845020 has 48 divisors (see below), whose sum is σ = 1985262048. Its totient is φ = 343741440.

The previous prime is 901845011. The next prime is 901845023. The reversal of 901845020 is 20548109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901845023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22472 + ... + 48048.

It is an arithmetic number, because the mean of its divisors is an integer number (41359626).

Almost surely, 2^901845020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 901845020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992631024).

901845020 is an abundant number, since it is smaller than the sum of its proper divisors (1083417028).

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

901845020 is a wasteful number, since it uses less digits than its factorization.

901845020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25670 (or 25668 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 901845020 is about 30030.7345897499. The cubic root of 901845020 is about 966.1486925100.

The spelling of 901845020 in words is "nine hundred one million, eight hundred forty-five thousand, twenty".