1340620 has 24 divisors (see below), whose sum is σ = 2981664. Its totient is φ = 504576.

The previous prime is 1340617. The next prime is 1340627. The reversal of 1340620 is 260431.

It is a junction number, because it is equal to n+sod(n) for n = 1340594 and 1340603.

It is not an unprimeable number, because it can be changed into a prime (1340627) 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, 1632 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (124236).

2^1340620 is an apocalyptic number.

1340620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340620 is an abundant number, since it is smaller than the sum of its proper divisors (1641044).

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

1340620 is a wasteful number, since it uses less digits than its factorization.

1340620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1340620 is about 1157.8514585213. The cubic root of 1340620 is about 110.2643778501.

The spelling of 1340620 in words is "one million, three hundred forty thousand, six hundred twenty".