1497340 has 36 divisors (see below), whose sum is σ = 3412584. Its totient is φ = 551616.

The previous prime is 1497337. The next prime is 1497341. The reversal of 1497340 is 437941.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1497299 and 1497308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1497341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3159 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (94794).

2^1497340 is an apocalyptic number.

1497340 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 1497340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706292).

1497340 is an abundant number, since it is smaller than the sum of its proper divisors (1915244).

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

1497340 is a wasteful number, since it uses less digits than its factorization.

1497340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1497340 is about 1223.6584490780. The cubic root of 1497340 is about 114.4037188874.

The spelling of 1497340 in words is "one million, four hundred ninety-seven thousand, three hundred forty".