1401376655 has 32 divisors (see below), whose sum is σ = 1952931840. Its totient is φ = 945509760.

The previous prime is 1401376649. The next prime is 1401376709. The reversal of 1401376655 is 5566731041.

It is not a de Polignac number, because 1401376655 - 2¹² = 1401372559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014065 + ... + 1015445.

It is an arithmetic number, because the mean of its divisors is an integer number (61029120).

Almost surely, 2^1401376655 is an apocalyptic number.

1401376655 is a deficient number, since it is larger than the sum of its proper divisors (551555185).

1401376655 is a wasteful number, since it uses less digits than its factorization.

1401376655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1401376655 is about 37434.9656738189. The cubic root of 1401376655 is about 1119.0555002270.

The spelling of 1401376655 in words is "one billion, four hundred one million, three hundred seventy-six thousand, six hundred fifty-five".