401332488 has 64 divisors (see below), whose sum is σ = 1034736960. Its totient is φ = 129620736.

The previous prime is 401332469. The next prime is 401332501. The reversal of 401332488 is 884233104.

It is a super-2 number, since 2×401332488² = 322135531848540288, which contains 22 as substring.

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, 250506 + ... + 252102.

It is an arithmetic number, because the mean of its divisors is an integer number (16167765).

Almost surely, 2^401332488 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 401332488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517368480).

401332488 is an abundant number, since it is smaller than the sum of its proper divisors (633404472).

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

401332488 is a wasteful number, since it uses less digits than its factorization.

401332488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1922 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 401332488 is about 20033.2845035456. The cubic root of 401332488 is about 737.6235475486.

It can be divided in two parts, 40 and 1332488, that added together give a triangular number (1332528 = T₁₆₃₂).

The spelling of 401332488 in words is "four hundred one million, three hundred thirty-two thousand, four hundred eighty-eight".