1975040 has 36 divisors (see below), whose sum is σ = 4733904. Its totient is φ = 789504.

The previous prime is 1975037. The next prime is 1975049. The reversal of 1975040 is 405791.

It is not an unprimeable number, because it can be changed into a prime (1975049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509 + ... + 2051.

2^1975040 is an apocalyptic number.

1975040 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 1975040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2366952).

1975040 is an abundant number, since it is smaller than the sum of its proper divisors (2758864).

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

1975040 is an equidigital number, since it uses as much as digits as its factorization.

1975040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1975040 is about 1405.3611635448. The cubic root of 1975040 is about 125.4657822196.

The spelling of 1975040 in words is "one million, nine hundred seventy-five thousand, forty".