401572705 has 8 divisors (see below), whose sum is σ = 482603112. Its totient is φ = 320780928.

The previous prime is 401572687. The next prime is 401572723. The reversal of 401572705 is 507275104.

It is an interprime number because it is at equal distance from previous prime (401572687) and next prime (401572723).

It can be written as a sum of positive squares in 4 ways, for example, as 210801361 + 190771344 = 14519^2 + 13812^2 .

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 401572705 - 2²³ = 393184097 is a prime.

It is a super-2 number, since 2×401572705² = 322521274802034050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55932 + ... + 62701.

It is an arithmetic number, because the mean of its divisors is an integer number (60325389).

Almost surely, 2^401572705 is an apocalyptic number.

It is an amenable number.

401572705 is a deficient number, since it is larger than the sum of its proper divisors (81030407).

401572705 is a wasteful number, since it uses less digits than its factorization.

401572705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119315.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 401572705 is about 20039.2790538981. The cubic root of 401572705 is about 737.7706860439.

The spelling of 401572705 in words is "four hundred one million, five hundred seventy-two thousand, seven hundred five".