2197240 has 32 divisors (see below), whose sum is σ = 4988880. Its totient is φ = 870912.

The previous prime is 2197193. The next prime is 2197241. The reversal of 2197240 is 427912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197241) 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, 6352 + ... + 6688.

2^2197240 is an apocalyptic number.

2197240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197240 is an abundant number, since it is smaller than the sum of its proper divisors (2791640).

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

2197240 is a wasteful number, since it uses less digits than its factorization.

2197240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2197240 is about 1482.3090096198. The cubic root of 2197240 is about 130.0047335555.

The spelling of 2197240 in words is "two million, one hundred ninety-seven thousand, two hundred forty".