2148240 has 40 divisors (see below), whose sum is σ = 6660288. Its totient is φ = 572800.

The previous prime is 2148227. The next prime is 2148241. The reversal of 2148240 is 428412.

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

It is a super-2 number, since 2×2148240² = 9229870195200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2148241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4236 + ... + 4715.

2^2148240 is an apocalyptic number.

2148240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2148240 is an abundant number, since it is smaller than the sum of its proper divisors (4512048).

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

2148240 is a wasteful number, since it uses less digits than its factorization.

2148240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967 (or 8961 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2148240 is about 1465.6875519701. The cubic root of 2148240 is about 129.0310603652.

The spelling of 2148240 in words is "two million, one hundred forty-eight thousand, two hundred forty".