1534340 has 12 divisors (see below), whose sum is σ = 3222156. Its totient is φ = 613728.

The previous prime is 1534331. The next prime is 1534349. The reversal of 1534340 is 434351.

It is an interprime number because it is at equal distance from previous prime (1534331) and next prime (1534349).

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 643204 = 944^2 + 802^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 76717 = 1534340 / (1 + 5 + 3 + 4 + 3 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (1534349) 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, 38339 + ... + 38378.

It is an arithmetic number, because the mean of its divisors is an integer number (268513).

2^1534340 is an apocalyptic number.

1534340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1534340 is an abundant number, since it is smaller than the sum of its proper divisors (1687816).

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

1534340 is a wasteful number, since it uses less digits than its factorization.

1534340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76726 (or 76724 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1534340 is about 1238.6847863763. The cubic root of 1534340 is about 115.3383858108.

Adding to 1534340 its reverse (434351), we get a palindrome (1968691).

The spelling of 1534340 in words is "one million, five hundred thirty-four thousand, three hundred forty".