2171461406 has 4 divisors (see below), whose sum is σ = 3257192112. Its totient is φ = 1085730702.

The previous prime is 2171461403. The next prime is 2171461423. The reversal of 2171461406 is 6041641712.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×2171461406³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171461403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542865350 + ... + 542865353.

It is an arithmetic number, because the mean of its divisors is an integer number (814298028).

Almost surely, 2^2171461406 is an apocalyptic number.

2171461406 is a deficient number, since it is larger than the sum of its proper divisors (1085730706).

2171461406 is a wasteful number, since it uses less digits than its factorization.

2171461406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085730705.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2171461406 is about 46598.9421124557. The cubic root of 2171461406 is about 1294.9431569689.

The spelling of 2171461406 in words is "two billion, one hundred seventy-one million, four hundred sixty-one thousand, four hundred six".