2062640 has 80 divisors (see below), whose sum is σ = 5356800. Its totient is φ = 734976.

The previous prime is 2062637. The next prime is 2062651. The reversal of 2062640 is 462602.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent 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, 34931 + ... + 34989.

It is an arithmetic number, because the mean of its divisors is an integer number (66960).

2^2062640 is an apocalyptic number.

2062640 is a gapful number since it is divisible by the number (20) 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 2062640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2678400).

2062640 is an abundant number, since it is smaller than the sum of its proper divisors (3294160).

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

2062640 is a wasteful number, since it uses less digits than its factorization.

2062640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2062640 is about 1436.1894025511. The cubic root of 2062640 is about 127.2939642978.

The spelling of 2062640 in words is "two million, sixty-two thousand, six hundred forty".