1951040 has 112 divisors (see below), whose sum is σ = 5803392. Its totient is φ = 608256.

The previous prime is 1951013. The next prime is 1951043. The reversal of 1951040 is 401591.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1951043) 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, 29087 + ... + 29153.

It is an arithmetic number, because the mean of its divisors is an integer number (51816).

2^1951040 is an apocalyptic number.

1951040 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 1951040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2901696).

1951040 is an abundant number, since it is smaller than the sum of its proper divisors (3852352).

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

1951040 is a wasteful number, since it uses less digits than its factorization.

1951040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1951040 is about 1396.7963344740. The cubic root of 1951040 is about 124.9555041628.

The spelling of 1951040 in words is "one million, nine hundred fifty-one thousand, forty".