1901256 has 32 divisors (see below), whose sum is σ = 5432640. Its totient is φ = 543168.

The previous prime is 1901231. The next prime is 1901267. The reversal of 1901256 is 6521091.

It is a super-2 number, since 2×1901256² = 7229548755072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5491 + ... + 5826.

It is an arithmetic number, because the mean of its divisors is an integer number (169770).

2^1901256 is an apocalyptic number.

It is an amenable number.

1901256 is an abundant number, since it is smaller than the sum of its proper divisors (3531384).

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

1901256 is a wasteful number, since it uses less digits than its factorization.

1901256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11333 (or 11329 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1901256 is about 1378.8603990252. The cubic root of 1901256 is about 123.8835187810.

The spelling of 1901256 in words is "one million, nine hundred one thousand, two hundred fifty-six".