401235500 has 24 divisors (see below), whose sum is σ = 876299424. Its totient is φ = 160494000.

The previous prime is 401235487. The next prime is 401235533. The reversal of 401235500 is 5532104.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400736 + ... + 401735.

It is an arithmetic number, because the mean of its divisors is an integer number (36512476).

Almost surely, 2^401235500 is an apocalyptic number.

It is an amenable number.

401235500 is an abundant number, since it is smaller than the sum of its proper divisors (475063924).

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

401235500 is a wasteful number, since it uses less digits than its factorization.

401235500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802490 (or 802478 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 401235500 is about 20030.8636858224. The cubic root of 401235500 is about 737.5641235062.

Adding to 401235500 its reverse (5532104), we get a palindrome (406767604).

The spelling of 401235500 in words is "four hundred one million, two hundred thirty-five thousand, five hundred".