163469940 has 24 divisors (see below), whose sum is σ = 457716000. Its totient is φ = 43591968.

The previous prime is 163469923. The next prime is 163469941. The reversal of 163469940 is 49964361.

It is a junction number, because it is equal to n+sod(n) for n = 163469892 and 163469901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163469941) 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, 1362190 + ... + 1362309.

It is an arithmetic number, because the mean of its divisors is an integer number (19071500).

Almost surely, 2^163469940 is an apocalyptic number.

163469940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163469940 is an abundant number, since it is smaller than the sum of its proper divisors (294246060).

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

163469940 is a wasteful number, since it uses less digits than its factorization.

163469940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724511 (or 2724509 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 163469940 is about 12785.5363594962. The cubic root of 163469940 is about 546.7800173109.

The spelling of 163469940 in words is "one hundred sixty-three million, four hundred sixty-nine thousand, nine hundred forty".