401936340 has 96 divisors (see below), whose sum is σ = 1217414016. Its totient is φ = 98496000.

The previous prime is 401936333. The next prime is 401936363. The reversal of 401936340 is 43639104.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 401936298 and 401936307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194754 + ... + 196806.

It is an arithmetic number, because the mean of its divisors is an integer number (12681396).

Almost surely, 2^401936340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401936340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608707008).

401936340 is an abundant number, since it is smaller than the sum of its proper divisors (815477676).

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

401936340 is a wasteful number, since it uses less digits than its factorization.

401936340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 401936340 is about 20048.3500568002. The cubic root of 401936340 is about 737.9933093304.

The spelling of 401936340 in words is "four hundred one million, nine hundred thirty-six thousand, three hundred forty".