1402649 has 4 divisors (see below), whose sum is σ = 1412880. Its totient is φ = 1392420.

The previous prime is 1402603. The next prime is 1402673. The reversal of 1402649 is 9462041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1402649 - 2²⁰ = 354073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402699) by changing a digit.

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, 4907 + ... + 5184.

It is an arithmetic number, because the mean of its divisors is an integer number (353220).

2^1402649 is an apocalyptic number.

It is an amenable number.

1402649 is a deficient number, since it is larger than the sum of its proper divisors (10231).

1402649 is a wasteful number, since it uses less digits than its factorization.

1402649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1402649 is about 1184.3348344113. The cubic root of 1402649 is about 111.9394070631.

The spelling of 1402649 in words is "one million, four hundred two thousand, six hundred forty-nine".