42472216 has 8 divisors (see below), whose sum is σ = 79635420. Its totient is φ = 21236104.

The previous prime is 42472169. The next prime is 42472247. The reversal of 42472216 is 61227424.

It is a happy number.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2654506 + ... + 2654521.

Almost surely, 2^42472216 is an apocalyptic number.

It is an amenable number.

42472216 is a deficient number, since it is larger than the sum of its proper divisors (37163204).

42472216 is a wasteful number, since it uses less digits than its factorization.

42472216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309033 (or 5309029 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 42472216 is about 6517.0711212937. The cubic root of 42472216 is about 348.9005389763.

The spelling of 42472216 in words is "forty-two million, four hundred seventy-two thousand, two hundred sixteen".