1400899361 has 2 divisors, whose sum is σ = 1400899362. Its totient is φ = 1400899360.

The previous prime is 1400899351. The next prime is 1400899403. The reversal of 1400899361 is 1639980041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1320886336 + 80013025 = 36344^2 + 8945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400899361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400899301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700449680 + 700449681.

It is an arithmetic number, because the mean of its divisors is an integer number (700449681).

Almost surely, 2^1400899361 is an apocalyptic number.

It is an amenable number.

1400899361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400899361 is an equidigital number, since it uses as much as digits as its factorization.

1400899361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1400899361 is about 37428.5901551207. The cubic root of 1400899361 is about 1118.9284396627.

The spelling of 1400899361 in words is "one billion, four hundred million, eight hundred ninety-nine thousand, three hundred sixty-one".