3402391 has 8 divisors (see below), whose sum is σ = 3482784. Its totient is φ = 3323040.

The previous prime is 3402389. The next prime is 3402403. The reversal of 3402391 is 1932043.

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

It is a cyclic number.

It is not a de Polignac number, because 3402391 - 2¹ = 3402389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3402331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12145 + ... + 12421.

It is an arithmetic number, because the mean of its divisors is an integer number (435348).

Almost surely, 2^3402391 is an apocalyptic number.

3402391 is a deficient number, since it is larger than the sum of its proper divisors (80393).

3402391 is a wasteful number, since it uses less digits than its factorization.

3402391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3402391 is about 1844.5571284186. The cubic root of 3402391 is about 150.4046997315.

The spelling of 3402391 in words is "three million, four hundred two thousand, three hundred ninety-one".