1354820 has 12 divisors (see below), whose sum is σ = 2845164. Its totient is φ = 541920.

The previous prime is 1354819. The next prime is 1354823. The reversal of 1354820 is 284531.

It can be written as a sum of positive squares in 2 ways, for example, as 662596 + 692224 = 814^2 + 832^2 .

It is not an unprimeable number, because it can be changed into a prime (1354823) 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, 33851 + ... + 33890.

It is an arithmetic number, because the mean of its divisors is an integer number (237097).

2^1354820 is an apocalyptic number.

1354820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1354820 is an abundant number, since it is smaller than the sum of its proper divisors (1490344).

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

1354820 is a wasteful number, since it uses less digits than its factorization.

1354820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67750 (or 67748 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1354820 is about 1163.9673534941. The cubic root of 1354820 is about 110.6523222969.

The spelling of 1354820 in words is "one million, three hundred fifty-four thousand, eight hundred twenty".