2234640 has 40 divisors (see below), whose sum is σ = 6928128. Its totient is φ = 595840.

The previous prime is 2234629. The next prime is 2234671. The reversal of 2234640 is 464322.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

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, 4416 + ... + 4895.

2^2234640 is an apocalyptic number.

2234640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2234640 is an abundant number, since it is smaller than the sum of its proper divisors (4693488).

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

2234640 is a wasteful number, since it uses less digits than its factorization.

2234640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9327 (or 9321 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2234640 is about 1494.8712319126. The cubic root of 2234640 is about 130.7382064633.

Adding to 2234640 its reverse (464322), we get a palindrome (2698962).

The spelling of 2234640 in words is "two million, two hundred thirty-four thousand, six hundred forty".