3506128 has 10 divisors (see below), whose sum is σ = 6793154. Its totient is φ = 1753056.

The previous prime is 3506123. The next prime is 3506137. The reversal of 3506128 is 8216053.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3283344 + 222784 = 1812^2 + 472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109551 + ... + 109582.

Almost surely, 2^3506128 is an apocalyptic number.

It is an amenable number.

3506128 is a deficient number, since it is larger than the sum of its proper divisors (3287026).

3506128 is a wasteful number, since it uses less digits than its factorization.

3506128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219141 (or 219135 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3506128 is about 1872.4657540260. The cubic root of 3506128 is about 151.9180074874.

It can be divided in two parts, 350612 and 8, that multiplied together give a triangular number (2804896 = T₂₃₆₈).

The spelling of 3506128 in words is "three million, five hundred six thousand, one hundred twenty-eight".