401011205 has 16 divisors (see below), whose sum is σ = 550308864. Its totient is φ = 274803840.

The previous prime is 401011157. The next prime is 401011213. The reversal of 401011205 is 502110104.

It is not a de Polignac number, because 401011205 - 2¹² = 401007109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77324 + ... + 82346.

It is an arithmetic number, because the mean of its divisors is an integer number (34394304).

Almost surely, 2^401011205 is an apocalyptic number.

It is an amenable number.

401011205 is a deficient number, since it is larger than the sum of its proper divisors (149297659).

401011205 is a wasteful number, since it uses less digits than its factorization.

401011205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 401011205 is about 20025.2641680453. The cubic root of 401011205 is about 737.4266624384.

Adding to 401011205 its reverse (502110104), we get a palindrome (903121309).

It can be divided in two parts, 40101120 and 5, that multiplied together give a square (200505600 = 14160²).

The spelling of 401011205 in words is "four hundred one million, eleven thousand, two hundred five".