1400445425 has 24 divisors (see below), whose sum is σ = 1762601472. Its totient is φ = 1103672000.

The previous prime is 1400445391. The next prime is 1400445437. The reversal of 1400445425 is 5245440041.

It is not a de Polignac number, because 1400445425 - 2²² = 1396251121 is a prime.

It is a super-2 number, since 2×1400445425² = 3922494776806861250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509555 + ... + 512295.

It is an arithmetic number, because the mean of its divisors is an integer number (73441728).

Almost surely, 2^1400445425 is an apocalyptic number.

It is an amenable number.

1400445425 is a deficient number, since it is larger than the sum of its proper divisors (362156047).

1400445425 is a wasteful number, since it uses less digits than its factorization.

1400445425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049 (or 3044 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1400445425 is about 37422.5256363063. The cubic root of 1400445425 is about 1118.8075704589.

Adding to 1400445425 its reverse (5245440041), we get a palindrome (6645885466).

The spelling of 1400445425 in words is "one billion, four hundred million, four hundred forty-five thousand, four hundred twenty-five".