40212437980 has 192 divisors, whose sum is σ = 100490987520. Its totient is φ = 13404268800.

The previous prime is 40212437977. The next prime is 40212437983. The reversal of 40212437980 is 8973421204.

It is an interprime number because it is at equal distance from previous prime (40212437977) and next prime (40212437983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212437983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130984987 + ... + 130985293.

It is an arithmetic number, because the mean of its divisors is an integer number (523390560).

Almost surely, 2^40212437980 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 40212437980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50245493760).

40212437980 is an abundant number, since it is smaller than the sum of its proper divisors (60278549540).

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

40212437980 is a wasteful number, since it uses less digits than its factorization.

40212437980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 40212437980 in words is "forty billion, two hundred twelve million, four hundred thirty-seven thousand, nine hundred eighty".