403540016 has 40 divisors (see below), whose sum is σ = 903116304. Its totient is φ = 172636160.

The previous prime is 403540013. The next prime is 403540021. The reversal of 403540016 is 610045304.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 403539973 and 403540000.

It is not an unprimeable number, because it can be changed into a prime (403540013) 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, 64445 + ... + 70428.

Almost surely, 2^403540016 is an apocalyptic number.

It is an amenable number.

403540016 is an abundant number, since it is smaller than the sum of its proper divisors (499576288).

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

403540016 is a wasteful number, since it uses less digits than its factorization.

403540016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134909 (or 134903 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 403540016 is about 20088.3054536713. The cubic root of 403540016 is about 738.9735073631.

The spelling of 403540016 in words is "four hundred three million, five hundred forty thousand, sixteen".