401401628914 has 24 divisors (see below), whose sum is σ = 712723940460. Its totient is φ = 168420262560.

The previous prime is 401401628893. The next prime is 401401628941. The reversal of 401401628914 is 419826104104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 380174595889 + 21227033025 = 616583^2 + 145695^2 .

It is a super-2 number, since 2×401401628914² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63792409 + ... + 63798700.

Almost surely, 2^401401628914 is an apocalyptic number.

401401628914 is a deficient number, since it is larger than the sum of its proper divisors (311322311546).

401401628914 is a wasteful number, since it uses less digits than its factorization.

401401628914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127591146 (or 127591135 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 401401628914 in words is "four hundred one billion, four hundred one million, six hundred twenty-eight thousand, nine hundred fourteen".