75272418 has 48 divisors (see below), whose sum is σ = 176432256. Its totient is φ = 23055840.

The previous prime is 75272401. The next prime is 75272419. The reversal of 75272418 is 81427257.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (75272419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62821 + ... + 64007.

It is an arithmetic number, because the mean of its divisors is an integer number (3675672).

Almost surely, 2^75272418 is an apocalyptic number.

75272418 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 75272418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88216128).

75272418 is an abundant number, since it is smaller than the sum of its proper divisors (101159838).

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

75272418 is a wasteful number, since it uses less digits than its factorization.

75272418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1476 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 75272418 is about 8675.9678422641. The cubic root of 75272418 is about 422.2263073422.

The spelling of 75272418 in words is "seventy-five million, two hundred seventy-two thousand, four hundred eighteen".