1949001 has 16 divisors (see below), whose sum is σ = 2826240. Its totient is φ = 1190160.

The previous prime is 1948993. The next prime is 1949023. The reversal of 1949001 is 1009491.

It is not a de Polignac number, because 1949001 - 2³ = 1948993 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1949081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (176640).

2^1949001 is an apocalyptic number.

It is an amenable number.

1949001 is a deficient number, since it is larger than the sum of its proper divisors (877239).

1949001 is a wasteful number, since it uses less digits than its factorization.

1949001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1949001 is about 1396.0662591725. The cubic root of 1949001 is about 124.9119593386.

Adding to 1949001 its product of nonzero digits (324), we get a triangular number (1949325 = T₁₉₇₄).

The spelling of 1949001 in words is "one million, nine hundred forty-nine thousand, one".