3405090 has 32 divisors (see below), whose sum is σ = 8801856. Its totient is φ = 838080.

The previous prime is 3405079. The next prime is 3405109. The reversal of 3405090 is 905043.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3976 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (275058).

Almost surely, 2^3405090 is an apocalyptic number.

3405090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3405090 is an abundant number, since it is smaller than the sum of its proper divisors (5396766).

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

3405090 is a wasteful number, since it uses less digits than its factorization.

3405090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 3405090 is about 1845.2885953151. The cubic root of 3405090 is about 150.4444595153. Note that the first 4 decimals are identical.

The spelling of 3405090 in words is "three million, four hundred five thousand, ninety".