42272901 has 32 divisors (see below), whose sum is σ = 68688000. Its totient is φ = 25482240.

The previous prime is 42272899. The next prime is 42272917. The reversal of 42272901 is 10927224.

It is not a de Polignac number, because 42272901 - 2¹ = 42272899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272921) 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, 93925 + ... + 94373.

It is an arithmetic number, because the mean of its divisors is an integer number (2146500).

Almost surely, 2^42272901 is an apocalyptic number.

It is an amenable number.

42272901 is a deficient number, since it is larger than the sum of its proper divisors (26415099).

42272901 is a wasteful number, since it uses less digits than its factorization.

42272901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 42272901 is about 6501.7613767348. The cubic root of 42272901 is about 348.3539057214.

The spelling of 42272901 in words is "forty-two million, two hundred seventy-two thousand, nine hundred one".