1401420755 has 16 divisors (see below), whose sum is σ = 2035005120. Its totient is φ = 904445952.

The previous prime is 1401420749. The next prime is 1401420793. The reversal of 1401420755 is 5570241041.

It is a cyclic number.

It is not a de Polignac number, because 1401420755 - 2⁸ = 1401420499 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177070 + ... + 1178259.

It is an arithmetic number, because the mean of its divisors is an integer number (127187820).

Almost surely, 2^1401420755 is an apocalyptic number.

1401420755 is a deficient number, since it is larger than the sum of its proper divisors (633584365).

1401420755 is a wasteful number, since it uses less digits than its factorization.

1401420755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355358.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 1401420755 is about 37435.5546906948. The cubic root of 1401420755 is about 1119.0672386439.

Adding to 1401420755 its reverse (5570241041), we get a palindrome (6971661796).

The spelling of 1401420755 in words is "one billion, four hundred one million, four hundred twenty thousand, seven hundred fifty-five".