1447140 has 48 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 380160.

The previous prime is 1447139. The next prime is 1447151. The reversal of 1447140 is 417441.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5205 + ... + 5475.

It is an arithmetic number, because the mean of its divisors is an integer number (85680).

2^1447140 is an apocalyptic number.

1447140 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 1447140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2056320).

1447140 is an abundant number, since it is smaller than the sum of its proper divisors (2665500).

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

1447140 is a wasteful number, since it uses less digits than its factorization.

1447140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1447140 is about 1202.9713213539. The cubic root of 1447140 is about 113.1106546526.

The spelling of 1447140 in words is "one million, four hundred forty-seven thousand, one hundred forty".