3420380 has 24 divisors (see below), whose sum is σ = 7561680. Its totient is φ = 1296000.

The previous prime is 3420371. The next prime is 3420401. The reversal of 3420380 is 830243.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4121 + ... + 4880.

It is an arithmetic number, because the mean of its divisors is an integer number (315070).

Almost surely, 2^3420380 is an apocalyptic number.

It is an amenable number.

3420380 is an abundant number, since it is smaller than the sum of its proper divisors (4141300).

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

3420380 is a wasteful number, since it uses less digits than its factorization.

3420380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029 (or 9027 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3420380 is about 1849.4269382703. The cubic root of 3420380 is about 150.6693053897.

It can be divided in two parts, 3420 and 380, that multiplied together give a square (1299600 = 1140²).

The spelling of 3420380 in words is "three million, four hundred twenty thousand, three hundred eighty".