401378334 has 32 divisors (see below), whose sum is σ = 920705280. Its totient is φ = 114270912.

The previous prime is 401378333. The next prime is 401378377. The reversal of 401378334 is 433873104.

It is a super-2 number, since 2×401378334² = 322209134009231112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401378295 and 401378304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401378333) 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, 4999 + ... + 28770.

It is an arithmetic number, because the mean of its divisors is an integer number (28772040).

Almost surely, 2^401378334 is an apocalyptic number.

401378334 is an abundant number, since it is smaller than the sum of its proper divisors (519326946).

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

401378334 is a wasteful number, since it uses less digits than its factorization.

401378334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34064.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 401378334 is about 20034.4287165869. The cubic root of 401378334 is about 737.6516338216.

The spelling of 401378334 in words is "four hundred one million, three hundred seventy-eight thousand, three hundred thirty-four".