1449920 has 56 divisors (see below), whose sum is σ = 3621024. Its totient is φ = 551936.

The previous prime is 1449911. The next prime is 1449937. The reversal of 1449920 is 299441.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7262 + ... + 7458.

2^1449920 is an apocalyptic number.

1449920 is a gapful number since it is divisible by the number (10) 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 1449920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810512).

1449920 is an abundant number, since it is smaller than the sum of its proper divisors (2171104).

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

1449920 is a wasteful number, since it uses less digits than its factorization.

1449920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1449920 is about 1204.1262392291. The cubic root of 1449920 is about 113.1830379926.

The spelling of 1449920 in words is "one million, four hundred forty-nine thousand, nine hundred twenty".