2138040 has 48 divisors (see below), whose sum is σ = 6949800. Its totient is φ = 570048.

The previous prime is 2138033. The next prime is 2138093. The reversal of 2138040 is 408312.

It is a happy number.

2138040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2610 + ... + 3329.

2^2138040 is an apocalyptic number.

2138040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2138040 is an abundant number, since it is smaller than the sum of its proper divisors (4811760).

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

2138040 is a wasteful number, since it uses less digits than its factorization.

2138040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5956 (or 5949 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2138040 is about 1462.2038161624. The cubic root of 2138040 is about 128.8265200075.

The spelling of 2138040 in words is "two million, one hundred thirty-eight thousand, forty".