1331402 has 8 divisors (see below), whose sum is σ = 2008800. Its totient is φ = 661804.

The previous prime is 1331399. The next prime is 1331411. The reversal of 1331402 is 2041331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502 + ... + 2217.

It is an arithmetic number, because the mean of its divisors is an integer number (251100).

2^1331402 is an apocalyptic number.

1331402 is a deficient number, since it is larger than the sum of its proper divisors (677398).

1331402 is a wasteful number, since it uses less digits than its factorization.

1331402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1331402 is about 1153.8639434526. The cubic root of 1331402 is about 110.0110732654.

Adding to 1331402 its reverse (2041331), we get a palindrome (3372733).

The spelling of 1331402 in words is "one million, three hundred thirty-one thousand, four hundred two".