2454240 has 48 divisors (see below), whose sum is σ = 7732368. Its totient is φ = 654336.

The previous prime is 2454229. The next prime is 2454251. The reversal of 2454240 is 424542.

It is an interprime number because it is at equal distance from previous prime (2454229) and next prime (2454251).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077 + ... + 3036.

It is an arithmetic number, because the mean of its divisors is an integer number (161091).

2^2454240 is an apocalyptic number.

2454240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2454240 is an abundant number, since it is smaller than the sum of its proper divisors (5278128).

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

2454240 is a wasteful number, since it uses less digits than its factorization.

2454240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131 (or 5123 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 2454240 is about 1566.6014170809. The cubic root of 2454240 is about 134.8876981010.

Adding to 2454240 its reverse (424542), we get a palindrome (2878782).

The spelling of 2454240 in words is "two million, four hundred fifty-four thousand, two hundred forty".