401240001 has 16 divisors (see below), whose sum is σ = 567000000. Its totient is φ = 251516928.

The previous prime is 401239939. The next prime is 401240029. The reversal of 401240001 is 100042104.

It is not a de Polignac number, because 401240001 - 2⁷ = 401239873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401240501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60550 + ... + 66848.

It is an arithmetic number, because the mean of its divisors is an integer number (35437500).

Almost surely, 2^401240001 is an apocalyptic number.

It is an amenable number.

401240001 is a deficient number, since it is larger than the sum of its proper divisors (165759999).

401240001 is a wasteful number, since it uses less digits than its factorization.

401240001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 401240001 is about 20030.9760371281. The cubic root of 401240001 is about 737.5668814573.

Adding to 401240001 its reverse (100042104), we get a palindrome (501282105).

The spelling of 401240001 in words is "four hundred one million, two hundred forty thousand, one".