20150042 has 8 divisors (see below), whose sum is σ = 32972832. Its totient is φ = 9159100.

The previous prime is 20150033. The next prime is 20150059. The reversal of 20150042 is 24005102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20149999 and 20150026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457934 + ... + 457977.

It is an arithmetic number, because the mean of its divisors is an integer number (4121604).

Almost surely, 2^20150042 is an apocalyptic number.

20150042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20150042 is a deficient number, since it is larger than the sum of its proper divisors (12822790).

20150042 is a wasteful number, since it uses less digits than its factorization.

20150042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915924.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20150042 is about 4488.8798157224. The cubic root of 20150042 is about 272.1188656512.

Adding to 20150042 its reverse (24005102), we get a palindrome (44155144).

The spelling of 20150042 in words is "twenty million, one hundred fifty thousand, forty-two".