2171261424 has 40 divisors (see below), whose sum is σ = 5663562112. Its totient is φ = 716725440.

The previous prime is 2171261399. The next prime is 2171261467. The reversal of 2171261424 is 4241621712.

It is a junction number, because it is equal to n+sod(n) for n = 2171261391 and 2171261400.

It is a congruent number.

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, 214642 + ... + 224529.

Almost surely, 2^2171261424 is an apocalyptic number.

2171261424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2171261424 is an abundant number, since it is smaller than the sum of its proper divisors (3492300688).

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

2171261424 is a wasteful number, since it uses less digits than its factorization.

2171261424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439285 (or 439279 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 2171261424 is about 46596.7962847233. The cubic root of 2171261424 is about 1294.9034029010.

The spelling of 2171261424 in words is "two billion, one hundred seventy-one million, two hundred sixty-one thousand, four hundred twenty-four".