1901056 has 40 divisors (see below), whose sum is σ = 3928320. Its totient is φ = 918528.

The previous prime is 1901033. The next prime is 1901087. The reversal of 1901056 is 6501091.

It is a super-2 number, since 2×1901056² = 7228027830272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24025 + ... + 24103.

It is an arithmetic number, because the mean of its divisors is an integer number (98208).

2^1901056 is an apocalyptic number.

1901056 is a gapful number since it is divisible by the number (16) 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 1901056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964160).

1901056 is an abundant number, since it is smaller than the sum of its proper divisors (2027264).

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

1901056 is an frugal number, since it uses more digits than its factorization.

1901056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 1901056 is about 1378.7878734599. The cubic root of 1901056 is about 123.8791747101.

The spelling of 1901056 in words is "one million, nine hundred one thousand, fifty-six".