72042548 has 6 divisors (see below), whose sum is σ = 126074466. Its totient is φ = 36021272.

The previous prime is 72042541. The next prime is 72042557. The reversal of 72042548 is 84524027.

It can be written as a sum of positive squares in only one way, i.e., 59567524 + 12475024 = 7718^2 + 3532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72042541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9005315 + ... + 9005322.

It is an arithmetic number, because the mean of its divisors is an integer number (21012411).

Almost surely, 2^72042548 is an apocalyptic number.

It is an amenable number.

72042548 is a deficient number, since it is larger than the sum of its proper divisors (54031918).

72042548 is a wasteful number, since it uses less digits than its factorization.

72042548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18010641 (or 18010639 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 72042548 is about 8487.7881688930. The cubic root of 72042548 is about 416.0986960721.

The spelling of 72042548 in words is "seventy-two million, forty-two thousand, five hundred forty-eight".