1400224005 has 24 divisors (see below), whose sum is σ = 2486254680. Its totient is φ = 728570880.

The previous prime is 1400223991. The next prime is 1400224031. The reversal of 1400224005 is 5004220041.

It can be written as a sum of positive squares in 4 ways, for example, as 31741956 + 1368482049 = 5634^2 + 36993^2 .

It is not a de Polignac number, because 1400224005 - 2⁵ = 1400223973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377620 + ... + 381309.

It is an arithmetic number, because the mean of its divisors is an integer number (103593945).

Almost surely, 2^1400224005 is an apocalyptic number.

1400224005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400224005 is a deficient number, since it is larger than the sum of its proper divisors (1086030675).

1400224005 is a wasteful number, since it uses less digits than its factorization.

1400224005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758981 (or 758978 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1400224005 is about 37419.5671407353. The cubic root of 1400224005 is about 1118.7486036415.

Adding to 1400224005 its reverse (5004220041), we get a palindrome (6404444046).

The spelling of 1400224005 in words is "one billion, four hundred million, two hundred twenty-four thousand, five".