2157707446 has 8 divisors (see below), whose sum is σ = 3340966464. Its totient is φ = 1044051960.

The previous prime is 2157707417. The next prime is 2157707459. The reversal of 2157707446 is 6447077512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17400805 + ... + 17400928.

It is an arithmetic number, because the mean of its divisors is an integer number (417620808).

Almost surely, 2^2157707446 is an apocalyptic number.

2157707446 is a deficient number, since it is larger than the sum of its proper divisors (1183259018).

2157707446 is a wasteful number, since it uses less digits than its factorization.

2157707446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34801766.

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 2157707446 is about 46451.1296525714. The cubic root of 2157707446 is about 1292.2033226934.

The spelling of 2157707446 in words is "two billion, one hundred fifty-seven million, seven hundred seven thousand, four hundred forty-six".