1400443005 has 48 divisors (see below), whose sum is σ = 2437770816. Its totient is φ = 686200320.

The previous prime is 1400442997. The next prime is 1400443019. The reversal of 1400443005 is 5003440041.

It is not a de Polignac number, because 1400443005 - 2³ = 1400442997 is a prime.

It is a super-2 number, since 2×1400443005² = 3922481220506860050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 589470 + ... + 591840.

It is an arithmetic number, because the mean of its divisors is an integer number (50786892).

Almost surely, 2^1400443005 is an apocalyptic number.

1400443005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400443005 is a deficient number, since it is larger than the sum of its proper divisors (1037327811).

1400443005 is a wasteful number, since it uses less digits than its factorization.

1400443005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638 (or 2625 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1400443005 is about 37422.4933028252. The cubic root of 1400443005 is about 1118.8069260173.

Adding to 1400443005 its reverse (5003440041), we get a palindrome (6403883046).

The spelling of 1400443005 in words is "one billion, four hundred million, four hundred forty-three thousand, five".