2480040 has 72 divisors (see below), whose sum is σ = 8158410. Its totient is φ = 653376.

The previous prime is 2480003. The next prime is 2480053. The reversal of 2480040 is 400842.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2232036 + 248004 = 1494^2 + 498^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2479995 and 2480022.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29839 + ... + 29921.

2^2480040 is an apocalyptic number.

2480040 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 2480040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4079205).

2480040 is an abundant number, since it is smaller than the sum of its proper divisors (5678370).

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

2480040 is a wasteful number, since it uses less digits than its factorization.

2480040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2480040 is about 1574.8142747639. The cubic root of 2480040 is about 135.3587167694.

Adding to 2480040 its reverse (400842), we get a palindrome (2880882).

The spelling of 2480040 in words is "two million, four hundred eighty thousand, forty".