403766680 has 16 divisors (see below), whose sum is σ = 908475120. Its totient is φ = 161506656.

The previous prime is 403766641. The next prime is 403766683. The reversal of 403766680 is 86667304.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 10094167 = 403766680 / (4 + 0 + 3 + 7 + 6 + 6 + 6 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403766683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5047044 + ... + 5047123.

It is an arithmetic number, because the mean of its divisors is an integer number (56779695).

Almost surely, 2^403766680 is an apocalyptic number.

403766680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403766680 is an abundant number, since it is smaller than the sum of its proper divisors (504708440).

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

403766680 is a wasteful number, since it uses less digits than its factorization.

403766680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094178 (or 10094174 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 403766680 is about 20093.9463520733. The cubic root of 403766680 is about 739.1118392373. Note that the first 3 decimals are identical.

The spelling of 403766680 in words is "four hundred three million, seven hundred sixty-six thousand, six hundred eighty".