2017420 has 24 divisors (see below), whose sum is σ = 4460400. Its totient is φ = 764352.

The previous prime is 2017409. The next prime is 2017427. The reversal of 2017420 is 247102.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2017394 and 2017403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2017427) 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, 2275 + ... + 3034.

It is an arithmetic number, because the mean of its divisors is an integer number (185850).

2^2017420 is an apocalyptic number.

2017420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2017420 is an abundant number, since it is smaller than the sum of its proper divisors (2442980).

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

2017420 is a wasteful number, since it uses less digits than its factorization.

2017420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337 (or 5335 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 2017420 is about 1420.3591095213. The cubic root of 2017420 is about 126.3568451462.

The spelling of 2017420 in words is "two million, seventeen thousand, four hundred twenty".