1019240 has 32 divisors (see below), whose sum is σ = 2328480. Its totient is φ = 401472.

The previous prime is 1019237. The next prime is 1019251. The reversal of 1019240 is 429101.

It is a happy number.

It is a zygodrome in base 7.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3167 + ... + 3473.

It is an arithmetic number, because the mean of its divisors is an integer number (72765).

2^1019240 is an apocalyptic number.

1019240 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 1019240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164240).

1019240 is an abundant number, since it is smaller than the sum of its proper divisors (1309240).

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

1019240 is a wasteful number, since it uses less digits than its factorization.

1019240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1019240 is about 1009.5741676568. The cubic root of 1019240 is about 100.6372636571.

The spelling of 1019240 in words is "one million, nineteen thousand, two hundred forty".