1401442307 has 2 divisors, whose sum is σ = 1401442308. Its totient is φ = 1401442306.

The previous prime is 1401442253. The next prime is 1401442351. The reversal of 1401442307 is 7032441041.

It is a strong prime.

It is an emirp because it is prime and its reverse (7032441041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401442307 - 2¹⁸ = 1401180163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401442807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700721153 + 700721154.

It is an arithmetic number, because the mean of its divisors is an integer number (700721154).

Almost surely, 2^1401442307 is an apocalyptic number.

1401442307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401442307 is an equidigital number, since it uses as much as digits as its factorization.

1401442307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1401442307 is about 37435.8425442783. The cubic root of 1401442307 is about 1119.0729752064.

Adding to 1401442307 its reverse (7032441041), we get a palindrome (8433883348).

The spelling of 1401442307 in words is "one billion, four hundred one million, four hundred forty-two thousand, three hundred seven".