40272080 has 80 divisors (see below), whose sum is σ = 100172160. Its totient is φ = 15020544.

The previous prime is 40272079. The next prime is 40272137. The reversal of 40272080 is 8027204.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×40272080³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78866 + ... + 79374.

It is an arithmetic number, because the mean of its divisors is an integer number (1252152).

Almost surely, 2^40272080 is an apocalyptic number.

40272080 is a gapful number since it is divisible by the number (40) 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 40272080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50086080).

40272080 is an abundant number, since it is smaller than the sum of its proper divisors (59900080).

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

40272080 is a wasteful number, since it uses less digits than its factorization.

40272080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 40272080 is about 6346.0286794183. The cubic root of 40272080 is about 342.7688549127.

Adding to 40272080 its reverse (8027204), we get a palindrome (48299284).

The spelling of 40272080 in words is "forty million, two hundred seventy-two thousand, eighty".