1400444032 has 64 divisors (see below), whose sum is σ = 3034100160. Its totient is φ = 640005120.

The previous prime is 1400444029. The next prime is 1400444047. The reversal of 1400444032 is 2304440041.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1400444032² = 3922486973528834048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400443994 and 1400444012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167307 + ... + 175477.

It is an arithmetic number, because the mean of its divisors is an integer number (47407815).

Almost surely, 2^1400444032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400444032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517050080).

1400444032 is an abundant number, since it is smaller than the sum of its proper divisors (1633656128).

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

1400444032 is a wasteful number, since it uses less digits than its factorization.

1400444032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301 (or 8289 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1400444032 is about 37422.5070245167. The cubic root of 1400444032 is about 1118.8071995057.

Adding to 1400444032 its reverse (2304440041), we get a palindrome (3704884073).

The spelling of 1400444032 in words is "one billion, four hundred million, four hundred forty-four thousand, thirty-two".