1949436 has 18 divisors (see below), whose sum is σ = 4927832. Its totient is φ = 649800.

The previous prime is 1949417. The next prime is 1949459. The reversal of 1949436 is 6349491.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 54151 = 1949436 / (1 + 9 + 4 + 9 + 4 + 3 + 6).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 1 + 9 + 4⁵ + 9² + 4⁹ + 3⁸ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 1949436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27040 + ... + 27111.

2^1949436 is an apocalyptic number.

It is an amenable number.

1949436 is an abundant number, since it is smaller than the sum of its proper divisors (2978396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1949436 is a wasteful number, since it uses less digits than its factorization.

1949436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54161 (or 54156 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1949436 is about 1396.2220453782. Note that the first 3 decimals coincide. The cubic root of 1949436 is about 124.9212517334.

It can be divided in two parts, 19 and 49436, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 1949436 in words is "one million, nine hundred forty-nine thousand, four hundred thirty-six".