2921472 has 66 divisors (see below), whose sum is σ = 8462298. Its totient is φ = 970752.

The previous prime is 2921423. The next prime is 2921507. The reversal of 2921472 is 2741292.

It can be written as a sum of positive squares in only one way, i.e., 1806336 + 1115136 = 1344^2 + 1056^2 .

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

It is a congruent number.

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, 9058 + ... + 9374.

2^2921472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2921472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4231149).

2921472 is an abundant number, since it is smaller than the sum of its proper divisors (5540826).

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

2921472 is a wasteful number, since it uses less digits than its factorization.

2921472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 322 counting only the distinct ones).

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

The square root of 2921472 is about 1709.2314062174. The cubic root of 2921472 is about 142.9554036363.

It can be divided in two parts, 292 and 1472, that added together give a square (1764 = 42²).

The spelling of 2921472 in words is "two million, nine hundred twenty-one thousand, four hundred seventy-two".