40340804 has 48 divisors (see below), whose sum is σ = 86515968. Its totient is φ = 16080768.

The previous prime is 40340771. The next prime is 40340821. The reversal of 40340804 is 40804304.

40340804 = 547² + 548² + ... + 657².

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

It is a self number, because there is not a number n which added to its sum of digits gives 40340804.

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, 22982 + ... + 24674.

It is an arithmetic number, because the mean of its divisors is an integer number (1802416).

Almost surely, 2^40340804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40340804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43257984).

40340804 is an abundant number, since it is smaller than the sum of its proper divisors (46175164).

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

40340804 is a wasteful number, since it uses less digits than its factorization.

40340804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 40340804 is about 6351.4410963182. The cubic root of 40340804 is about 342.9637215949.

The spelling of 40340804 in words is "forty million, three hundred forty thousand, eight hundred four".