3520402 has 16 divisors (see below), whose sum is σ = 5484312. Its totient is φ = 1693440.

The previous prime is 3520399. The next prime is 3520427. The reversal of 3520402 is 2040253.

It can be written as a sum of positive squares in 4 ways, for example, as 1535121 + 1985281 = 1239^2 + 1409^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8152 + ... + 8572.

Almost surely, 2^3520402 is an apocalyptic number.

3520402 is a deficient number, since it is larger than the sum of its proper divisors (1963910).

3520402 is a wasteful number, since it uses less digits than its factorization.

3520402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 3520402 is about 1876.2734342307. The cubic root of 3520402 is about 152.1238890695.

Adding to 3520402 its reverse (2040253), we get a palindrome (5560655).

The spelling of 3520402 in words is "three million, five hundred twenty thousand, four hundred two".