401628000 has 96 divisors (see below), whose sum is σ = 1315772640. Its totient is φ = 107097600.

The previous prime is 401627999. The next prime is 401628013. The reversal of 401628000 is 826104.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×401628000² = 322610100768000000, 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, 4735 + ... + 28734.

It is an arithmetic number, because the mean of its divisors is an integer number (13705965).

Almost surely, 2^401628000 is an apocalyptic number.

401628000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401628000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657886320).

401628000 is an abundant number, since it is smaller than the sum of its proper divisors (914144640).

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

401628000 is a wasteful number, since it uses less digits than its factorization.

401628000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33497 (or 33479 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 401628000 is about 20040.6586718102. The cubic root of 401628000 is about 737.8045472080.

The spelling of 401628000 in words is "four hundred one million, six hundred twenty-eight thousand".