140323537920 has 352 divisors, whose sum is σ = 477333150336. Its totient is φ = 35061760000.

The previous prime is 140323537873. The next prime is 140323537927. The reversal of 140323537920 is 29735323041.

It is a super-4 number, since 4×140323537920⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (140323537927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65540050 + ... + 65542190.

Almost surely, 2^140323537920 is an apocalyptic number.

140323537920 is a gapful number since it is divisible by the number (10) 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 140323537920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238666575168).

140323537920 is an abundant number, since it is smaller than the sum of its proper divisors (337009612416).

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

140323537920 is a wasteful number, since it uses less digits than its factorization.

140323537920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 140323537920 in words is "one hundred forty billion, three hundred twenty-three million, five hundred thirty-seven thousand, nine hundred twenty".