403028136 has 144 divisors (see below), whose sum is σ = 1317083040. Its totient is φ = 115123680.

The previous prime is 403028099. The next prime is 403028147. The reversal of 403028136 is 631820304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93141 + ... + 97371.

It is an arithmetic number, because the mean of its divisors is an integer number (9146410).

Almost surely, 2^403028136 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 403028136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658541520).

403028136 is an abundant number, since it is smaller than the sum of its proper divisors (914054904).

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

403028136 is a wasteful number, since it uses less digits than its factorization.

403028136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266 (or 4243 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 403028136 is about 20075.5606646489. The cubic root of 403028136 is about 738.6609189400.

The spelling of 403028136 in words is "four hundred three million, twenty-eight thousand, one hundred thirty-six".