1340450 has 48 divisors (see below), whose sum is σ = 2812320. Its totient is φ = 472320.

The previous prime is 1340447. The next prime is 1340459. The reversal of 1340450 is 540431.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16109 + ... + 16191.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

2^1340450 is an apocalyptic number.

1340450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340450 is an abundant number, since it is smaller than the sum of its proper divisors (1471870).

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

1340450 is a wasteful number, since it uses less digits than its factorization.

1340450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1340450 is about 1157.7780443591. The cubic root of 1340450 is about 110.2597168881.

Adding to 1340450 its reverse (540431), we get a palindrome (1880881).

The spelling of 1340450 in words is "one million, three hundred forty thousand, four hundred fifty".