3402578 has 4 divisors (see below), whose sum is σ = 5103870. Its totient is φ = 1701288.

The previous prime is 3402563. The next prime is 3402593. The reversal of 3402578 is 8752043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8752043 = 73 ⋅119891.

It is an interprime number because it is at equal distance from previous prime (3402563) and next prime (3402593).

It can be written as a sum of positive squares in only one way, i.e., 3396649 + 5929 = 1843^2 + 77^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3402578.

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 as a sum of consecutive naturals, namely, 850643 + ... + 850646.

Almost surely, 2^3402578 is an apocalyptic number.

3402578 is a deficient number, since it is larger than the sum of its proper divisors (1701292).

3402578 is a wasteful number, since it uses less digits than its factorization.

3402578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701291.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 3402578 is about 1844.6078173964. The cubic root of 3402578 is about 150.4074551627.

The spelling of 3402578 in words is "three million, four hundred two thousand, five hundred seventy-eight".