1400032404 has 48 divisors (see below), whose sum is σ = 3820756800. Its totient is φ = 442114848.

The previous prime is 1400032393. The next prime is 1400032421. The reversal of 1400032404 is 4042300041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339087 + ... + 343190.

It is an arithmetic number, because the mean of its divisors is an integer number (79599100).

Almost surely, 2^1400032404 is an apocalyptic number.

It is an amenable number.

1400032404 is an abundant number, since it is smaller than the sum of its proper divisors (2420724396).

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

1400032404 is a wasteful number, since it uses less digits than its factorization.

1400032404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682309 (or 682301 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1400032404 is about 37417.0068818980. The cubic root of 1400032404 is about 1118.6975729664.

Adding to 1400032404 its reverse (4042300041), we get a palindrome (5442332445).

The spelling of 1400032404 in words is "one billion, four hundred million, thirty-two thousand, four hundred four".