3402129 has 4 divisors (see below), whose sum is σ = 4536176. Its totient is φ = 2268084.

The previous prime is 3402127. The next prime is 3402131. The reversal of 3402129 is 9212043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9212043 = 3 ⋅3070681.

It is an interprime number because it is at equal distance from previous prime (3402127) and next prime (3402131).

It is not a de Polignac number, because 3402129 - 2¹ = 3402127 is a prime.

It is a D-number.

It is a Duffinian number.

3402129 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3402127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567019 + ... + 567024.

It is an arithmetic number, because the mean of its divisors is an integer number (1134044).

Almost surely, 2^3402129 is an apocalyptic number.

It is an amenable number.

3402129 is a deficient number, since it is larger than the sum of its proper divisors (1134047).

3402129 is a wasteful number, since it uses less digits than its factorization.

3402129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134046.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 3402129 is about 1844.4861072938. The cubic root of 3402129 is about 150.4008390109.

The spelling of 3402129 in words is "three million, four hundred two thousand, one hundred twenty-nine".