1400409931 has 2 divisors, whose sum is σ = 1400409932. Its totient is φ = 1400409930.

The previous prime is 1400409869. The next prime is 1400410061. The reversal of 1400409931 is 1399040041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1400409931 - 2⁹ = 1400409419 is a prime.

It is a super-3 number, since 3×1400409931³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1400409893 and 1400409902.

It is not a weakly prime, because it can be changed into another prime (1400409631) by changing a digit.

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 as a sum of consecutive naturals, namely, 700204965 + 700204966.

It is an arithmetic number, because the mean of its divisors is an integer number (700204966).

Almost surely, 2^1400409931 is an apocalyptic number.

1400409931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400409931 is an equidigital number, since it uses as much as digits as its factorization.

1400409931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1400409931 is about 37422.0514002105. The cubic root of 1400409931 is about 1118.7981183968.

Adding to 1400409931 its reverse (1399040041), we get a palindrome (2799449972).

The spelling of 1400409931 in words is "one billion, four hundred million, four hundred nine thousand, nine hundred thirty-one".