401240345 has 8 divisors (see below), whose sum is σ = 525260160. Its totient is φ = 291811120.

The previous prime is 401240327. The next prime is 401240393. The reversal of 401240345 is 543042104.

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

It is not a de Polignac number, because 401240345 - 2¹² = 401236249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401240345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3647585 + ... + 3647694.

It is an arithmetic number, because the mean of its divisors is an integer number (65657520).

Almost surely, 2^401240345 is an apocalyptic number.

It is an amenable number.

401240345 is a deficient number, since it is larger than the sum of its proper divisors (124019815).

401240345 is a wasteful number, since it uses less digits than its factorization.

401240345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295295.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 401240345 is about 20030.9846238272. The cubic root of 401240345 is about 737.5670922397.

Adding to 401240345 its reverse (543042104), we get a palindrome (944282449).

The spelling of 401240345 in words is "four hundred one million, two hundred forty thousand, three hundred forty-five".