1493140 has 36 divisors (see below), whose sum is σ = 3452148. Its totient is φ = 542080.

The previous prime is 1493101. The next prime is 1493159. The reversal of 1493140 is 413941.

1493140 = 137² + 138² + ... + 191².

It can be written as a sum of positive squares in 2 ways, for example, as 234256 + 1258884 = 484^2 + 1122^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2112 + ... + 2728.

It is an arithmetic number, because the mean of its divisors is an integer number (95893).

2^1493140 is an apocalyptic number.

1493140 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 1493140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726074).

1493140 is an abundant number, since it is smaller than the sum of its proper divisors (1959008).

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

1493140 is a wasteful number, since it uses less digits than its factorization.

1493140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1493140 is about 1221.9410787759. The cubic root of 1493140 is about 114.2966522269.

The spelling of 1493140 in words is "one million, four hundred ninety-three thousand, one hundred forty".