1206920 has 64 divisors (see below), whose sum is σ = 3205440. Its totient is φ = 403200.

The previous prime is 1206869. The next prime is 1206941. The reversal of 1206920 is 296021.

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

It is a junction number, because it is equal to n+sod(n) for n = 1206892 and 1206901.

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, 5615 + ... + 5825.

It is an arithmetic number, because the mean of its divisors is an integer number (50085).

2^1206920 is an apocalyptic number.

1206920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602720).

1206920 is an abundant number, since it is smaller than the sum of its proper divisors (1998520).

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

1206920 is a wasteful number, since it uses less digits than its factorization.

1206920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1206920 is about 1098.5991079552. The cubic root of 1206920 is about 106.4697321172.

The spelling of 1206920 in words is "one million, two hundred six thousand, nine hundred twenty".