1402432444 has 24 divisors (see below), whose sum is σ = 2870096768. Its totient is φ = 587064240.

The previous prime is 1402432439. The next prime is 1402432457. The reversal of 1402432444 is 4442342041.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581202 + ... + 583609.

Almost surely, 2^1402432444 is an apocalyptic number.

1402432444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1402432444 is an abundant number, since it is smaller than the sum of its proper divisors (1467664324).

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

1402432444 is a wasteful number, since it uses less digits than its factorization.

1402432444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164865 (or 1164863 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 1402432444 is about 37449.0646612168. The cubic root of 1402432444 is about 1119.3364596439.

Adding to 1402432444 its reverse (4442342041), we get a palindrome (5844774485).

It can be divided in two parts, 1402 and 432444, that added together give a triangular number (433846 = T₉₃₁).

The spelling of 1402432444 in words is "one billion, four hundred two million, four hundred thirty-two thousand, four hundred forty-four".