2161476 has 18 divisors (see below), whose sum is σ = 5463822. Its totient is φ = 720480.

The previous prime is 2161469. The next prime is 2161493. The reversal of 2161476 is 6741612.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 576 = 1470^2 + 24^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29985 + ... + 30056.

2^2161476 is an apocalyptic number.

It is an amenable number.

2161476 is an abundant number, since it is smaller than the sum of its proper divisors (3302346).

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

2161476 is a wasteful number, since it uses less digits than its factorization.

2161476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60051 (or 60046 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 2161476 is about 1470.1959053133. The cubic root of 2161476 is about 129.2955186385.

It can be divided in two parts, 216147 and 6, that added together give a triangular number (216153 = T₆₅₇).

The spelling of 2161476 in words is "two million, one hundred sixty-one thousand, four hundred seventy-six".