401142024 has 32 divisors (see below), whose sum is σ = 1114284000. Its totient is φ = 133713936.

The previous prime is 401142023. The next prime is 401142031. The reversal of 401142024 is 420241104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 401141988 and 401142006.

It is not an unprimeable number, because it can be changed into a prime (401142023) 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, 928354 + ... + 928785.

It is an arithmetic number, because the mean of its divisors is an integer number (34821375).

Almost surely, 2^401142024 is an apocalyptic number.

It is an amenable number.

401142024 is an abundant number, since it is smaller than the sum of its proper divisors (713141976).

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

401142024 is a wasteful number, since it uses less digits than its factorization.

401142024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857154 (or 1857144 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 401142024 is about 20028.5302506200. The cubic root of 401142024 is about 737.5068421849.

Adding to 401142024 its reverse (420241104), we get a palindrome (821383128).

The spelling of 401142024 in words is "four hundred one million, one hundred forty-two thousand, twenty-four".