1901842 has 4 divisors (see below), whose sum is σ = 2852766. Its totient is φ = 950920.

The previous prime is 1901839. The next prime is 1901857. The reversal of 1901842 is 2481091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1879641 + 22201 = 1371^2 + 149^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475459 + ... + 475462.

2^1901842 is an apocalyptic number.

1901842 is a deficient number, since it is larger than the sum of its proper divisors (950924).

1901842 is an equidigital number, since it uses as much as digits as its factorization.

1901842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950923.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1901842 is about 1379.0728769721. The cubic root of 1901842 is about 123.8962451550.

The spelling of 1901842 in words is "one million, nine hundred one thousand, eight hundred forty-two".