401612015 has 32 divisors (see below), whose sum is σ = 567060480. Its totient is φ = 267321600.

The previous prime is 401612009. The next prime is 401612047. The reversal of 401612015 is 510216104.

It is not a de Polignac number, because 401612015 - 2¹² = 401607919 is a prime.

It is a super-2 number, since 2×401612015² = 322584421184720450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342380 + ... + 343550.

It is an arithmetic number, because the mean of its divisors is an integer number (17720640).

Almost surely, 2^401612015 is an apocalyptic number.

401612015 is a deficient number, since it is larger than the sum of its proper divisors (165448465).

401612015 is a wasteful number, since it uses less digits than its factorization.

401612015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 401612015 is about 20040.2598536047. The cubic root of 401612015 is about 737.7947587453.

Adding to 401612015 its reverse (510216104), we get a palindrome (911828119).

The spelling of 401612015 in words is "four hundred one million, six hundred twelve thousand, fifteen".