401625500 has 24 divisors (see below), whose sum is σ = 877151184. Its totient is φ = 160650000.

The previous prime is 401625443. The next prime is 401625509. The reversal of 401625500 is 5526104.

It is a super-3 number, since 3×401625500³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401625509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401126 + ... + 402125.

It is an arithmetic number, because the mean of its divisors is an integer number (36547966).

Almost surely, 2^401625500 is an apocalyptic number.

It is an amenable number.

401625500 is an abundant number, since it is smaller than the sum of its proper divisors (475525684).

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

401625500 is a wasteful number, since it uses less digits than its factorization.

401625500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803270 (or 803258 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 401625500 is about 20040.5962985137. The cubic root of 401625500 is about 737.8030163426.

The spelling of 401625500 in words is "four hundred one million, six hundred twenty-five thousand, five hundred".