401607385 has 4 divisors (see below), whose sum is σ = 481928868. Its totient is φ = 321285904.

The previous prime is 401607379. The next prime is 401607419. The reversal of 401607385 is 583706104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43943641 + 357663744 = 6629^2 + 18912^2 .

It is a cyclic number.

It is not a de Polignac number, because 401607385 - 2³ = 401607377 is a prime.

It is a super-2 number, since 2×401607385² = 322576983373076450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401607385.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40160734 + ... + 40160743.

It is an arithmetic number, because the mean of its divisors is an integer number (120482217).

Almost surely, 2^401607385 is an apocalyptic number.

It is an amenable number.

401607385 is a deficient number, since it is larger than the sum of its proper divisors (80321483).

401607385 is an equidigital number, since it uses as much as digits as its factorization.

401607385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80321482.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 401607385 is about 20040.1443358076. The cubic root of 401607385 is about 737.7919235024.

The spelling of 401607385 in words is "four hundred one million, six hundred seven thousand, three hundred eighty-five".