403687952 has 40 divisors (see below), whose sum is σ = 810281472. Its totient is φ = 194630400.

The previous prime is 403687939. The next prime is 403687957. The reversal of 403687952 is 259786304.

It is not an unprimeable number, because it can be changed into a prime (403687957) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 152948 + ... + 155564.

Almost surely, 2^403687952 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 403687952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405140736).

403687952 is an abundant number, since it is smaller than the sum of its proper divisors (406593520).

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

403687952 is a wasteful number, since it uses less digits than its factorization.

403687952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967 (or 2961 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 403687952 is about 20091.9872586064. The cubic root of 403687952 is about 739.0637978129.

The spelling of 403687952 in words is "four hundred three million, six hundred eighty-seven thousand, nine hundred fifty-two".