1400320025 has 12 divisors (see below), whose sum is σ = 1869966252. Its totient is φ = 1034082240.

The previous prime is 1400320001. The next prime is 1400320081. The reversal of 1400320025 is 5200230041.

It can be written as a sum of positive squares in 6 ways, for example, as 267257104 + 1133062921 = 16348^2 + 33661^2 .

It is not a de Polignac number, because 1400320025 - 2⁸ = 1400319769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400319985 and 1400320012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2154014 + ... + 2154663.

It is an arithmetic number, because the mean of its divisors is an integer number (155830521).

Almost surely, 2^1400320025 is an apocalyptic number.

It is an amenable number.

1400320025 is a deficient number, since it is larger than the sum of its proper divisors (469646227).

1400320025 is a wasteful number, since it uses less digits than its factorization.

1400320025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308700 (or 4308695 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1400320025 is about 37420.8501373232. The cubic root of 1400320025 is about 1118.7741756893.

Adding to 1400320025 its reverse (5200230041), we get a palindrome (6600550066).

The spelling of 1400320025 in words is "one billion, four hundred million, three hundred twenty thousand, twenty-five".