1949172 has 48 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 602208.

The previous prime is 1949161. The next prime is 1949179. The reversal of 1949172 is 2719491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18873 + ... + 18975.

It is an arithmetic number, because the mean of its divisors is an integer number (101920).

2^1949172 is an apocalyptic number.

1949172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1949172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446080).

1949172 is an abundant number, since it is smaller than the sum of its proper divisors (2942988).

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

1949172 is a wasteful number, since it uses less digits than its factorization.

1949172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 210 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 1949172 is about 1396.1275013408. The cubic root of 1949172 is about 124.9156123760.

The spelling of 1949172 in words is "one million, nine hundred forty-nine thousand, one hundred seventy-two".