211412970 has 32 divisors (see below), whose sum is σ = 563768640. Its totient is φ = 56376720.

The previous prime is 211412951. The next prime is 211412977. The reversal of 211412970 is 79214112.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (211412977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391236 + ... + 391775.

It is an arithmetic number, because the mean of its divisors is an integer number (17617770).

Almost surely, 2^211412970 is an apocalyptic number.

211412970 is an abundant number, since it is smaller than the sum of its proper divisors (352355670).

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

211412970 is a wasteful number, since it uses less digits than its factorization.

211412970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783027 (or 783021 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 211412970 is about 14540.0471113405. The cubic root of 211412970 is about 595.7223249708.

The spelling of 211412970 in words is "two hundred eleven million, four hundred twelve thousand, nine hundred seventy".