140736816 has 120 divisors (see below), whose sum is σ = 448471296. Its totient is φ = 40782720.

The previous prime is 140736811. The next prime is 140736833. The reversal of 140736816 is 618637041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (140736811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34501 + ... + 38363.

Almost surely, 2^140736816 is an apocalyptic number.

140736816 is a gapful number since it is divisible by the number (16) 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 140736816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224235648).

140736816 is an abundant number, since it is smaller than the sum of its proper divisors (307734480).

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

140736816 is a wasteful number, since it uses less digits than its factorization.

140736816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 140736816 is about 11863.2548653394. The cubic root of 140736816 is about 520.1587483757.

The spelling of 140736816 in words is "one hundred forty million, seven hundred thirty-six thousand, eight hundred sixteen".