1400443432 has 8 divisors (see below), whose sum is σ = 2625831450. Its totient is φ = 700221712.

The previous prime is 1400443427. The next prime is 1400443441. The reversal of 1400443432 is 2343440041.

It can be written as a sum of positive squares in only one way, i.e., 1381311556 + 19131876 = 37166^2 + 4374^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1400443432² = 3922483612463877248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400443397 and 1400443406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87527707 + ... + 87527722.

Almost surely, 2^1400443432 is an apocalyptic number.

It is an amenable number.

1400443432 is a deficient number, since it is larger than the sum of its proper divisors (1225388018).

1400443432 is a wasteful number, since it uses less digits than its factorization.

1400443432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175055435 (or 175055431 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1400443432 is about 37422.4990079497. The cubic root of 1400443432 is about 1118.8070397267.

Adding to 1400443432 its reverse (2343440041), we get a palindrome (3743883473).

The spelling of 1400443432 in words is "one billion, four hundred million, four hundred forty-three thousand, four hundred thirty-two".