1962840 has 64 divisors (see below), whose sum is σ = 6428160. Its totient is φ = 475520.

The previous prime is 1962839. The next prime is 1962847. The reversal of 1962840 is 482691.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1962798 and 1962807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1962847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2^1962840 is an apocalyptic number.

1962840 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 1962840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3214080).

1962840 is an abundant number, since it is smaller than the sum of its proper divisors (4465320).

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

1962840 is a wasteful number, since it uses less digits than its factorization.

1962840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1962840 is about 1401.0139185604. The cubic root of 1962840 is about 125.2069106482.

The spelling of 1962840 in words is "one million, nine hundred sixty-two thousand, eight hundred forty".