72010540 has 24 divisors (see below), whose sum is σ = 172825632. Its totient is φ = 24689280.

The previous prime is 72010537. The next prime is 72010553. The reversal of 72010540 is 4501027.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257041 + ... + 257320.

It is an arithmetic number, because the mean of its divisors is an integer number (7201068).

Almost surely, 2^72010540 is an apocalyptic number.

72010540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72010540 is an abundant number, since it is smaller than the sum of its proper divisors (100815092).

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

72010540 is a wasteful number, since it uses less digits than its factorization.

72010540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514377 (or 514375 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 72010540 is about 8485.9024269667. The cubic root of 72010540 is about 416.0370636972.

Adding to 72010540 its reverse (4501027), we get a palindrome (76511567).

The spelling of 72010540 in words is "seventy-two million, ten thousand, five hundred forty".