1949401 has 4 divisors (see below), whose sum is σ = 1968804. Its totient is φ = 1930000.

The previous prime is 1949383. The next prime is 1949417. The reversal of 1949401 is 1049491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1049491 = 101 ⋅10391.

It can be written as a sum of positive squares in 2 ways, for example, as 1565001 + 384400 = 1251^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1949401 - 2¹⁵ = 1916633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1949401.

It is not an unprimeable number, because it can be changed into a prime (1949471) 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, 9550 + ... + 9751.

It is an arithmetic number, because the mean of its divisors is an integer number (492201).

2^1949401 is an apocalyptic number.

It is an amenable number.

1949401 is a deficient number, since it is larger than the sum of its proper divisors (19403).

1949401 is a wasteful number, since it uses less digits than its factorization.

1949401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19402.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1949401 is about 1396.2095114989. The cubic root of 1949401 is about 124.9205041206.

The spelling of 1949401 in words is "one million, nine hundred forty-nine thousand, four hundred one".