401335536 has 80 divisors (see below), whose sum is σ = 1187923968. Its totient is φ = 114374400.

The previous prime is 401335513. The next prime is 401335549. The reversal of 401335536 is 635533104.

It is a happy number.

It is a super-2 number, since 2×401335536² = 322140424912814592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153601 + ... + 156191.

Almost surely, 2^401335536 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 401335536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593961984).

401335536 is an abundant number, since it is smaller than the sum of its proper divisors (786588432).

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

401335536 is a wasteful number, since it uses less digits than its factorization.

401335536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070 (or 3064 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 401335536 is about 20033.3605767979. The cubic root of 401335536 is about 737.6254148871.

The spelling of 401335536 in words is "four hundred one million, three hundred thirty-five thousand, five hundred thirty-six".