1493820 has 72 divisors (see below), whose sum is σ = 4660656. Its totient is φ = 387072.

The previous prime is 1493813. The next prime is 1493839. The reversal of 1493820 is 283941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7644 + ... + 7836.

2^1493820 is an apocalyptic number.

1493820 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 1493820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2330328).

1493820 is an abundant number, since it is smaller than the sum of its proper divisors (3166836).

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

1493820 is a wasteful number, since it uses less digits than its factorization.

1493820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1493820 is about 1222.2192929258. The cubic root of 1493820 is about 114.3140004390.

It can be divided in two parts, 149 and 3820, that added together give a square (3969 = 63²).

The spelling of 1493820 in words is "one million, four hundred ninety-three thousand, eight hundred twenty".