401004024140 has 24 divisors (see below), whose sum is σ = 861692370000. Its totient is φ = 156671339328.

The previous prime is 401004024137. The next prime is 401004024149. The reversal of 401004024140 is 41420400104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (401004024149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233141015 + ... + 233142734.

It is an arithmetic number, because the mean of its divisors is an integer number (35903848750).

Almost surely, 2^401004024140 is an apocalyptic number.

It is an amenable number.

401004024140 is an abundant number, since it is smaller than the sum of its proper divisors (460688345860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401004024140 is a wasteful number, since it uses less digits than its factorization.

401004024140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466283801 (or 466283799 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 401004024140 its reverse (41420400104), we get a palindrome (442424424244).

The spelling of 401004024140 in words is "four hundred one billion, four million, twenty-four thousand, one hundred forty".