408967620 has 48 divisors (see below), whose sum is σ = 1173045888. Its totient is φ = 106397440.

The previous prime is 408967619. The next prime is 408967621. The reversal of 408967620 is 26769804.

It is an interprime number because it is at equal distance from previous prime (408967619) and next prime (408967621).

It is not an unprimeable number, because it can be changed into a prime (408967621) 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 15 ways as a sum of consecutive naturals, for example, 80664 + ... + 85583.

It is an arithmetic number, because the mean of its divisors is an integer number (24438456).

Almost surely, 2^408967620 is an apocalyptic number.

It is an amenable number.

408967620 is an abundant number, since it is smaller than the sum of its proper divisors (764078268).

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

408967620 is a wasteful number, since it uses less digits than its factorization.

408967620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166300 (or 166298 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 408967620 is about 20222.9478563339. The cubic root of 408967620 is about 742.2718227769.

It can be divided in two parts, 40896 and 7620, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 408967620 in words is "four hundred eight million, nine hundred sixty-seven thousand, six hundred twenty".