401043838 has 32 divisors (see below), whose sum is σ = 708099840. Its totient is φ = 168583680.

The previous prime is 401043833. The next prime is 401043857. The reversal of 401043838 is 838340104.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401043833) 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, 933 + ... + 28336.

It is an arithmetic number, because the mean of its divisors is an integer number (22128120).

Almost surely, 2^401043838 is an apocalyptic number.

401043838 is a deficient number, since it is larger than the sum of its proper divisors (307056002).

401043838 is a wasteful number, since it uses less digits than its factorization.

401043838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29332.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 401043838 is about 20026.0789472128. The cubic root of 401043838 is about 737.4466650312.

The spelling of 401043838 in words is "four hundred one million, forty-three thousand, eight hundred thirty-eight".