40231803720 has 192 divisors, whose sum is σ = 125475480000. Its totient is φ = 10319101440.

The previous prime is 40231803697. The next prime is 40231803721. The reversal of 40231803720 is 2730813204.

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

It is not an unprimeable number, because it can be changed into a prime (40231803721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20641306 + ... + 20643254.

It is an arithmetic number, because the mean of its divisors is an integer number (653518125).

Almost surely, 2^40231803720 is an apocalyptic number.

40231803720 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 40231803720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62737740000).

40231803720 is an abundant number, since it is smaller than the sum of its proper divisors (85243676280).

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

40231803720 is a wasteful number, since it uses less digits than its factorization.

40231803720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 40231803720 in words is "forty billion, two hundred thirty-one million, eight hundred three thousand, seven hundred twenty".