40352880 has 80 divisors (see below), whose sum is σ = 125706240. Its totient is φ = 10708224.

The previous prime is 40352869. The next prime is 40352881. The reversal of 40352880 is 8825304.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40352881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91701 + ... + 92139.

It is an arithmetic number, because the mean of its divisors is an integer number (1571328).

Almost surely, 2^40352880 is an apocalyptic number.

40352880 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 40352880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62853120).

40352880 is an abundant number, since it is smaller than the sum of its proper divisors (85353360).

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

40352880 is a wasteful number, since it uses less digits than its factorization.

40352880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 40352880 is about 6352.3916755817. The cubic root of 40352880 is about 342.9979401883.

The spelling of 40352880 in words is "forty million, three hundred fifty-two thousand, eight hundred eighty".