1400444052 has 48 divisors (see below), whose sum is σ = 3825612672. Its totient is φ = 390366720.

The previous prime is 1400444051. The next prime is 1400444057. The reversal of 1400444052 is 2504440041.

It is a happy number.

It is a super-2 number, since 2×1400444052² = 3922487085564357408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400444051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199873 + ... + 206760.

It is an arithmetic number, because the mean of its divisors is an integer number (79700264).

Almost surely, 2^1400444052 is an apocalyptic number.

1400444052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1400444052 is an abundant number, since it is smaller than the sum of its proper divisors (2425168620).

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

1400444052 is a wasteful number, since it uses less digits than its factorization.

1400444052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406688 (or 406686 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1400444052 is about 37422.5072917355. The cubic root of 1400444052 is about 1118.8072048316.

Adding to 1400444052 its reverse (2504440041), we get a palindrome (3904884093).

The spelling of 1400444052 in words is "one billion, four hundred million, four hundred forty-four thousand, fifty-two".