2533240 has 16 divisors (see below), whose sum is σ = 5699880. Its totient is φ = 1013280.

The previous prime is 2533231. The next prime is 2533261. The reversal of 2533240 is 423352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31626 + ... + 31705.

2^2533240 is an apocalyptic number.

2533240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2533240 is an abundant number, since it is smaller than the sum of its proper divisors (3166640).

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

2533240 is a wasteful number, since it uses less digits than its factorization.

2533240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63342 (or 63338 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 2533240 is about 1591.6155314648. The cubic root of 2533240 is about 136.3197493787.

Adding to 2533240 its reverse (423352), we get a palindrome (2956592).

The spelling of 2533240 in words is "two million, five hundred thirty-three thousand, two hundred forty".