401066650 has 12 divisors (see below), whose sum is σ = 745984062. Its totient is φ = 160426640.

The previous prime is 401066641. The next prime is 401066671. The reversal of 401066650 is 56660104.

It can be written as a sum of positive squares in 3 ways, for example, as 312122889 + 88943761 = 17667^2 + 9431^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4010617 + ... + 4010716.

Almost surely, 2^401066650 is an apocalyptic number.

401066650 is a deficient number, since it is larger than the sum of its proper divisors (344917412).

401066650 is a wasteful number, since it uses less digits than its factorization.

401066650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8021345 (or 8021340 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 401066650 is about 20026.6484964409. The cubic root of 401066650 is about 737.4606471389.

The spelling of 401066650 in words is "four hundred one million, sixty-six thousand, six hundred fifty".