1402340 has 12 divisors (see below), whose sum is σ = 2944956. Its totient is φ = 560928.

The previous prime is 1402309. The next prime is 1402361. The reversal of 1402340 is 432041.

It can be written as a sum of positive squares in 2 ways, for example, as 529984 + 872356 = 728^2 + 934^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35039 + ... + 35078.

It is an arithmetic number, because the mean of its divisors is an integer number (245413).

2^1402340 is an apocalyptic number.

1402340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402340 is an abundant number, since it is smaller than the sum of its proper divisors (1542616).

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

1402340 is a wasteful number, since it uses less digits than its factorization.

1402340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70126 (or 70124 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1402340 is about 1184.2043742530. The cubic root of 1402340 is about 111.9311864707.

Adding to 1402340 its reverse (432041), we get a palindrome (1834381).

Subtracting from 1402340 its reverse (432041), we obtain a cube (970299 = 99³).

The spelling of 1402340 in words is "one million, four hundred two thousand, three hundred forty".