3402945 has 64 divisors (see below), whose sum is σ = 7472640. Its totient is φ = 1430784.

The previous prime is 3402929. The next prime is 3402953. The reversal of 3402945 is 5492043.

It is not a de Polignac number, because 3402945 - 2⁴ = 3402929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12147 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (116760).

Almost surely, 2^3402945 is an apocalyptic number.

3402945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3402945 is an abundant number, since it is smaller than the sum of its proper divisors (4069695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3402945 is a wasteful number, since it uses less digits than its factorization.

3402945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3402945 is about 1844.7072938545. The cubic root of 3402945 is about 150.4128625873.

Adding to 3402945 its reverse (5492043), we get a palindrome (8894988).

The spelling of 3402945 in words is "three million, four hundred two thousand, nine hundred forty-five".