401752447 has 8 divisors (see below), whose sum is σ = 406341072. Its totient is φ = 397176000.

The previous prime is 401752303. The next prime is 401752451. The reversal of 401752447 is 744257104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 401752447 - 2¹¹ = 401750399 is a prime.

It is a super-2 number, since 2×401752447² = 322810057340975618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401753447) 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, 74248 + ... + 79474.

It is an arithmetic number, because the mean of its divisors is an integer number (50792634).

Almost surely, 2^401752447 is an apocalyptic number.

401752447 is a deficient number, since it is larger than the sum of its proper divisors (4588625).

401752447 is a wasteful number, since it uses less digits than its factorization.

401752447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6089.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 401752447 is about 20043.7632943517. The cubic root of 401752447 is about 737.8807438217.

The spelling of 401752447 in words is "four hundred one million, seven hundred fifty-two thousand, four hundred forty-seven".