2972445 has 16 divisors (see below), whose sum is σ = 5435520. Its totient is φ = 1358784.

The previous prime is 2972429. The next prime is 2972447. The reversal of 2972445 is 5442792.

It is not a de Polignac number, because 2972445 - 2⁴ = 2972429 is a prime.

It is an Ulam number.

2972445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14050 + ... + 14259.

It is an arithmetic number, because the mean of its divisors is an integer number (339720).

2^2972445 is an apocalyptic number.

It is an amenable number.

2972445 is a deficient number, since it is larger than the sum of its proper divisors (2463075).

2972445 is a wasteful number, since it uses less digits than its factorization.

2972445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28324.

The product of its digits is 20160, while the sum is 33.

The square root of 2972445 is about 1724.0780144761. The cubic root of 2972445 is about 143.7820294098.

The spelling of 2972445 in words is "two million, nine hundred seventy-two thousand, four hundred forty-five".