163237420 has 24 divisors (see below), whose sum is σ = 346336704. Its totient is φ = 64621056.

The previous prime is 163237409. The next prime is 163237423. The reversal of 163237420 is 24732361.

It is not an unprimeable number, because it can be changed into a prime (163237423) 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, 40132 + ... + 44011.

It is an arithmetic number, because the mean of its divisors is an integer number (14430696).

Almost surely, 2^163237420 is an apocalyptic number.

163237420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163237420 is an abundant number, since it is smaller than the sum of its proper divisors (183099284).

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

163237420 is a wasteful number, since it uses less digits than its factorization.

163237420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84249 (or 84247 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 163237420 is about 12776.4400362542. The cubic root of 163237420 is about 546.5206472652.

Adding to 163237420 its reverse (24732361), we get a palindrome (187969781).

The spelling of 163237420 in words is "one hundred sixty-three million, two hundred thirty-seven thousand, four hundred twenty".