4072522 has 8 divisors (see below), whose sum is σ = 6169572. Its totient is φ = 2016000.

The previous prime is 4072513. The next prime is 4072531. The reversal of 4072522 is 2252704.

It is an interprime number because it is at equal distance from previous prime (4072513) and next prime (4072531).

It can be written as a sum of positive squares in 2 ways, for example, as 3538161 + 534361 = 1881^2 + 731^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4072493 and 4072502.

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, 9879 + ... + 10282.

Almost surely, 2^4072522 is an apocalyptic number.

4072522 is a deficient number, since it is larger than the sum of its proper divisors (2097050).

4072522 is a wasteful number, since it uses less digits than its factorization.

4072522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20264.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 4072522 is about 2018.0490578774. The cubic root of 4072522 is about 159.6937109179.

The spelling of 4072522 in words is "four million, seventy-two thousand, five hundred twenty-two".