162780042 has 8 divisors (see below), whose sum is σ = 325560096. Its totient is φ = 54260012.

The previous prime is 162780041. The next prime is 162780043. The reversal of 162780042 is 240087261.

It is an interprime number because it is at equal distance from previous prime (162780041) and next prime (162780043).

It is a sphenic number, since it is the product of 3 distinct primes.

162780042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 162779991 and 162780009.

It is not an unprimeable number, because it can be changed into a prime (162780041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13564998 + ... + 13565009.

It is an arithmetic number, because the mean of its divisors is an integer number (40695012).

Almost surely, 2^162780042 is an apocalyptic number.

162780042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

162780042 is a wasteful number, since it uses less digits than its factorization.

162780042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27130012.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 162780042 is about 12758.5282066546. The cubic root of 162780042 is about 546.0097342922.

The spelling of 162780042 in words is "one hundred sixty-two million, seven hundred eighty thousand, forty-two".