211480240 has 40 divisors (see below), whose sum is σ = 493481808. Its totient is φ = 84284160.

The previous prime is 211480223. The next prime is 211480277. The reversal of 211480240 is 42084112.

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

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, 17970 + ... + 27310.

Almost surely, 2^211480240 is an apocalyptic number.

211480240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211480240 is an abundant number, since it is smaller than the sum of its proper divisors (282001568).

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

211480240 is a wasteful number, since it uses less digits than its factorization.

211480240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9637 (or 9631 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 211480240 is about 14542.3601935862. The cubic root of 211480240 is about 595.7855030422.

The spelling of 211480240 in words is "two hundred eleven million, four hundred eighty thousand, two hundred forty".