401654650 has 24 divisors (see below), whose sum is σ = 747612864. Its totient is φ = 160546800.

The previous prime is 401654641. The next prime is 401654651. The reversal of 401654650 is 56456104.

It is a super-2 number, since 2×401654650² = 322652915733245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401654651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117465 + ... + 120835.

It is an arithmetic number, because the mean of its divisors is an integer number (31150536).

Almost surely, 2^401654650 is an apocalyptic number.

401654650 is a deficient number, since it is larger than the sum of its proper divisors (345958214).

401654650 is a wasteful number, since it uses less digits than its factorization.

401654650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766 (or 5761 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 401654650 is about 20041.3235590866. The cubic root of 401654650 is about 737.8208658381.

The spelling of 401654650 in words is "four hundred one million, six hundred fifty-four thousand, six hundred fifty".