163242730 has 64 divisors (see below), whose sum is σ = 359106048. Its totient is φ = 52208640.

The previous prime is 163242727. The next prime is 163242733. The reversal of 163242730 is 37242361.

It is an interprime number because it is at equal distance from previous prime (163242727) and next prime (163242733).

It is not an unprimeable number, because it can be changed into a prime (163242733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64774 + ... + 67246.

It is an arithmetic number, because the mean of its divisors is an integer number (5611032).

Almost surely, 2^163242730 is an apocalyptic number.

163242730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163242730 is an abundant number, since it is smaller than the sum of its proper divisors (195863318).

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

163242730 is a wasteful number, since it uses less digits than its factorization.

163242730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

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

The square root of 163242730 is about 12776.6478389286. The cubic root of 163242730 is about 546.5265731801.

The spelling of 163242730 in words is "one hundred sixty-three million, two hundred forty-two thousand, seven hundred thirty".