42106472 has 8 divisors (see below), whose sum is σ = 78949650. Its totient is φ = 21053232.

The previous prime is 42106453. The next prime is 42106483. The reversal of 42106472 is 27460124.

It can be written as a sum of positive squares in only one way, i.e., 40883236 + 1223236 = 6394^2 + 1106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631647 + ... + 2631662.

Almost surely, 2^42106472 is an apocalyptic number.

It is an amenable number.

42106472 is a deficient number, since it is larger than the sum of its proper divisors (36843178).

42106472 is a wasteful number, since it uses less digits than its factorization.

42106472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263315 (or 5263311 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 42106472 is about 6488.9499921020. The cubic root of 42106472 is about 347.8961464003.

Adding to 42106472 its reverse (27460124), we get a palindrome (69566596).

The spelling of 42106472 in words is "forty-two million, one hundred six thousand, four hundred seventy-two".