40208980 has 48 divisors (see below), whose sum is σ = 98340480. Its totient is φ = 13523328.

The previous prime is 40208977. The next prime is 40208983. The reversal of 40208980 is 8980204.

It is an interprime number because it is at equal distance from previous prime (40208977) and next prime (40208983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40208983) 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, 4711 + ... + 10129.

It is an arithmetic number, because the mean of its divisors is an integer number (2048760).

Almost surely, 2^40208980 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 40208980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49170240).

40208980 is an abundant number, since it is smaller than the sum of its proper divisors (58131500).

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

40208980 is a wasteful number, since it uses less digits than its factorization.

40208980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488 (or 5486 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 40208980 is about 6341.0551172498. The cubic root of 40208980 is about 342.5897397470.

The spelling of 40208980 in words is "forty million, two hundred eight thousand, nine hundred eighty".