1396420 has 12 divisors (see below), whose sum is σ = 2932524. Its totient is φ = 558560.

The previous prime is 1396411. The next prime is 1396427. The reversal of 1396420 is 246931.

It can be written as a sum of positive squares in 2 ways, for example, as 298116 + 1098304 = 546^2 + 1048^2 .

It is not an unprimeable number, because it can be changed into a prime (1396427) 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, 34891 + ... + 34930.

It is an arithmetic number, because the mean of its divisors is an integer number (244377).

2^1396420 is an apocalyptic number.

1396420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1396420 is an abundant number, since it is smaller than the sum of its proper divisors (1536104).

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

1396420 is a wasteful number, since it uses less digits than its factorization.

1396420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69830 (or 69828 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1396420 is about 1181.7021621373. The cubic root of 1396420 is about 111.7734578992.

The spelling of 1396420 in words is "one million, three hundred ninety-six thousand, four hundred twenty".