40798560 has 96 divisors (see below), whose sum is σ = 140216832. Its totient is φ = 9889280.

The previous prime is 40798553. The next prime is 40798561. The reversal of 40798560 is 6589704.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40798561) 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 15 ways as a sum of consecutive naturals, for example, 1417 + ... + 9143.

It is an arithmetic number, because the mean of its divisors is an integer number (1460592).

Almost surely, 2^40798560 is an apocalyptic number.

40798560 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 40798560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70108416).

40798560 is an abundant number, since it is smaller than the sum of its proper divisors (99418272).

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

40798560 is a wasteful number, since it uses less digits than its factorization.

40798560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756 (or 7748 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 40798560 is about 6387.3750477015. The cubic root of 40798560 is about 344.2560739785.

Subtracting from 40798560 its reverse (6589704), we obtain a triangular number (34208856 = T₈₂₇₁).

The spelling of 40798560 in words is "forty million, seven hundred ninety-eight thousand, five hundred sixty".