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42471156 = 223713192389

42471156 has 192 divisors, whose sum is σ = 135475200. Its totient is φ = 10036224.

The previous prime is 42471139. The next prime is 42471157. The reversal of 42471156 is 65117424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42471157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 477160 + ... + 477248.

It is an arithmetic number, because the mean of its divisors is an integer number (705600).

Almost surely, 242471156 is an apocalyptic number.

42471156 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42471156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67737600).

42471156 is an abundant number, since it is smaller than the sum of its proper divisors (93004044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42471156 is a wasteful number, since it uses less digits than its factorization.

42471156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 156 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 42471156 is about 6516.9897959104. The cubic root of 42471156 is about 348.8976363913.

It can be divided in two parts, 42471 and 156, that multiplied together give a square (6625476 = 25742).

The spelling of 42471156 in words is "forty-two million, four hundred seventy-one thousand, one hundred fifty-six".