4156445 has 16 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 3108864.

The previous prime is 4156441. The next prime is 4156447. The reversal of 4156445 is 5446514.

It is not a de Polignac number, because 4156445 - 2² = 4156441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5021 + ... + 5789.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^4156445 is an apocalyptic number.

It is an amenable number.

4156445 is a deficient number, since it is larger than the sum of its proper divisors (1165795).

4156445 is a wasteful number, since it uses less digits than its factorization.

4156445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its digits is 9600, while the sum is 29.

The square root of 4156445 is about 2038.7361280951. The cubic root of 4156445 is about 160.7832042101.

The spelling of 4156445 in words is "four million, one hundred fifty-six thousand, four hundred forty-five".