1949438 has 24 divisors (see below), whose sum is σ = 3240120. Its totient is φ = 876960.

The previous prime is 1949417. The next prime is 1949459. The reversal of 1949438 is 8349491.

It is an interprime number because it is at equal distance from previous prime (1949417) and next prime (1949459).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31928 + ... + 31988.

It is an arithmetic number, because the mean of its divisors is an integer number (135005).

2^1949438 is an apocalyptic number.

1949438 is a deficient number, since it is larger than the sum of its proper divisors (1290682).

1949438 is a wasteful number, since it uses less digits than its factorization.

1949438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 111 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 1949438 is about 1396.2227615964. Note that the first 3 decimals coincide. The cubic root of 1949438 is about 124.9212944539.

The spelling of 1949438 in words is "one million, nine hundred forty-nine thousand, four hundred thirty-eight".