3520436 has 6 divisors (see below), whose sum is σ = 6160770. Its totient is φ = 1760216.

The previous prime is 3520427. The next prime is 3520457. The reversal of 3520436 is 6340253.

It can be written as a sum of positive squares in only one way, i.e., 2890000 + 630436 = 1700^2 + 794^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440051 + ... + 440058.

It is an arithmetic number, because the mean of its divisors is an integer number (1026795).

Almost surely, 2^3520436 is an apocalyptic number.

It is an amenable number.

3520436 is a deficient number, since it is larger than the sum of its proper divisors (2640334).

3520436 is a wasteful number, since it uses less digits than its factorization.

3520436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880113 (or 880111 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 3520436 is about 1876.2824947219. The cubic root of 3520436 is about 152.1243788048.

Adding to 3520436 its reverse (6340253), we get a palindrome (9860689).

The spelling of 3520436 in words is "three million, five hundred twenty thousand, four hundred thirty-six".