401113815 has 8 divisors (see below), whose sum is σ = 641782128. Its totient is φ = 213927360.

The previous prime is 401113733. The next prime is 401113831. The reversal of 401113815 is 518311104.

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

It is not a de Polignac number, because 401113815 - 2¹³ = 401105623 is a prime.

It is a congruent number.

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, 13370446 + ... + 13370475.

It is an arithmetic number, because the mean of its divisors is an integer number (80222766).

Almost surely, 2^401113815 is an apocalyptic number.

401113815 is a deficient number, since it is larger than the sum of its proper divisors (240668313).

401113815 is a wasteful number, since it uses less digits than its factorization.

401113815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26740929.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 401113815 is about 20027.8260178183. The cubic root of 401113815 is about 737.4895541947.

Adding to 401113815 its reverse (518311104), we get a palindrome (919424919).

The spelling of 401113815 in words is "four hundred one million, one hundred thirteen thousand, eight hundred fifteen".