1901312 has 36 divisors (see below), whose sum is σ = 4341456. Its totient is φ = 814080.

The previous prime is 1901299. The next prime is 1901329. The reversal of 1901312 is 2131091.

It is a happy number.

It is a super-2 number, since 2×1901312² = 7229974642688, which contains 22 as substring.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262 + ... + 2322.

It is an arithmetic number, because the mean of its divisors is an integer number (120596).

2^1901312 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 1901312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2170728).

1901312 is an abundant number, since it is smaller than the sum of its proper divisors (2440144).

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

1901312 is an equidigital number, since it uses as much as digits as its factorization.

1901312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1901312 is about 1378.8807054999. The cubic root of 1901312 is about 123.8847350663.

The spelling of 1901312 in words is "one million, nine hundred one thousand, three hundred twelve".