1990301 has 4 divisors (see below), whose sum is σ = 2001600. Its totient is φ = 1979004.

The previous prime is 1990279. The next prime is 1990319. The reversal of 1990301 is 1030991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1990301 - 2⁶ = 1990237 is a prime.

It is a super-2 number, since 2×1990301² = 7922596141202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5381 + ... + 5738.

It is an arithmetic number, because the mean of its divisors is an integer number (500400).

2^1990301 is an apocalyptic number.

It is an amenable number.

1990301 is a deficient number, since it is larger than the sum of its proper divisors (11299).

1990301 is a wasteful number, since it uses less digits than its factorization.

1990301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11298.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1990301 is about 1410.7802805540. The cubic root of 1990301 is about 125.7881086354.

The spelling of 1990301 in words is "one million, nine hundred ninety thousand, three hundred one".