401954647 has 8 divisors (see below), whose sum is σ = 444103776. Its totient is φ = 361861632.

The previous prime is 401954629. The next prime is 401954653. The reversal of 401954647 is 746459104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401954647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401954627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513618 + ... + 514399.

It is an arithmetic number, because the mean of its divisors is an integer number (55512972).

Almost surely, 2^401954647 is an apocalyptic number.

401954647 is a deficient number, since it is larger than the sum of its proper divisors (42149129).

401954647 is a wasteful number, since it uses less digits than its factorization.

401954647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028057.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 401954647 is about 20048.8066228392. The cubic root of 401954647 is about 738.0045136241.

The spelling of 401954647 in words is "four hundred one million, nine hundred fifty-four thousand, six hundred forty-seven".