163948470 has 32 divisors (see below), whose sum is σ = 449687808. Its totient is φ = 37473888.

The previous prime is 163948469. The next prime is 163948483. The reversal of 163948470 is 74849361.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390144 + ... + 390563.

It is an arithmetic number, because the mean of its divisors is an integer number (14052744).

Almost surely, 2^163948470 is an apocalyptic number.

163948470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163948470 is an abundant number, since it is smaller than the sum of its proper divisors (285739338).

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

163948470 is a wasteful number, since it uses less digits than its factorization.

163948470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780724.

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

The square root of 163948470 is about 12804.2364083142. The cubic root of 163948470 is about 547.3130322162.

The spelling of 163948470 in words is "one hundred sixty-three million, nine hundred forty-eight thousand, four hundred seventy".