42472269 has 84 divisors (see below), whose sum is σ = 78499260. Its totient is φ = 22861440.

The previous prime is 42472267. The next prime is 42472279. The reversal of 42472269 is 96227424.

42472269 is a `hidden beast` number, since 424 + 7 + 226 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10323369 + 32148900 = 3213^2 + 5670^2 .

It is not a de Polignac number, because 42472269 - 2¹ = 42472267 is a prime.

It is a super-2 number, since 2×42472269² = 3607787268016722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42472267) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 1035889 + ... + 1035929.

It is an arithmetic number, because the mean of its divisors is an integer number (934515).

Almost surely, 2^42472269 is an apocalyptic number.

42472269 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

42472269 is a deficient number, since it is larger than the sum of its proper divisors (36026991).

42472269 is an equidigital number, since it uses as much as digits as its factorization.

42472269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 80 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 42472269 is about 6517.0751875362. The cubic root of 42472269 is about 348.9006841042.

The spelling of 42472269 in words is "forty-two million, four hundred seventy-two thousand, two hundred sixty-nine".