2150040 has 128 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 506880.

The previous prime is 2150039. The next prime is 2150101. The reversal of 2150040 is 400512.

2150040 = T₁₃₃ + T₁₃₄ + ... + T₂₄₇.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2149998 and 2150025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52420 + ... + 52460.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2^2150040 is an apocalyptic number.

2150040 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 2150040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628800).

2150040 is an abundant number, since it is smaller than the sum of its proper divisors (5107560).

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

2150040 is a wasteful number, since it uses less digits than its factorization.

2150040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2150040 is about 1466.3014696849. The cubic root of 2150040 is about 129.0670884735.

Adding to 2150040 its reverse (400512), we get a palindrome (2550552).

The spelling of 2150040 in words is "two million, one hundred fifty thousand, forty".