1402401 has 32 divisors (see below), whose sum is σ = 2515968. Its totient is φ = 671040.

The previous prime is 1402399. The next prime is 1402417. The reversal of 1402401 is 1042041.

It is not a de Polignac number, because 1402401 - 2¹ = 1402399 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1402421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2770 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2^1402401 is an apocalyptic number.

1402401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1402401 is a deficient number, since it is larger than the sum of its proper divisors (1113567).

1402401 is a wasteful number, since it uses less digits than its factorization.

1402401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1402401 is about 1184.2301296623. The cubic root of 1402401 is about 111.9328094017.

Adding to 1402401 its reverse (1042041), we get a palindrome (2444442).

The spelling of 1402401 in words is "one million, four hundred two thousand, four hundred one".