140732790 has 64 divisors (see below), whose sum is σ = 369826560. Its totient is φ = 33991040.

The previous prime is 140732771. The next prime is 140732797. The reversal of 140732790 is 97237041.

140732790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140732797) 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, 113896 + ... + 115124.

It is an arithmetic number, because the mean of its divisors is an integer number (5778540).

Almost surely, 2^140732790 is an apocalyptic number.

140732790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140732790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184913280).

140732790 is an abundant number, since it is smaller than the sum of its proper divisors (229093770).

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

140732790 is a wasteful number, since it uses less digits than its factorization.

140732790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 140732790 is about 11863.0851805085. The cubic root of 140732790 is about 520.1537883395.

The spelling of 140732790 in words is "one hundred forty million, seven hundred thirty-two thousand, seven hundred ninety".