1900949 has 8 divisors (see below), whose sum is σ = 1979040. Its totient is φ = 1824336.

The previous prime is 1900937. The next prime is 1900981. The reversal of 1900949 is 9490091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1900949 - 2¹⁶ = 1835413 is a prime.

It is a super-2 number, since 2×1900949² = 7227214201202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2762 + ... + 3380.

It is an arithmetic number, because the mean of its divisors is an integer number (247380).

2^1900949 is an apocalyptic number.

It is an amenable number.

1900949 is a deficient number, since it is larger than the sum of its proper divisors (78091).

1900949 is an equidigital number, since it uses as much as digits as its factorization.

1900949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1900949 is about 1378.7490707159. The cubic root of 1900949 is about 123.8768505071.

The spelling of 1900949 in words is "one million, nine hundred thousand, nine hundred forty-nine".