140502642 has 64 divisors (see below), whose sum is σ = 329336064. Its totient is φ = 39133440.

The previous prime is 140502641. The next prime is 140502673. The reversal of 140502642 is 246205041.

It is not an unprimeable number, because it can be changed into a prime (140502641) 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, 443068 + ... + 443384.

It is an arithmetic number, because the mean of its divisors is an integer number (5145876).

Almost surely, 2^140502642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140502642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164668032).

140502642 is an abundant number, since it is smaller than the sum of its proper divisors (188833422).

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

140502642 is a wasteful number, since it uses less digits than its factorization.

140502642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 140502642 is about 11853.3810366494. The cubic root of 140502642 is about 519.8700883555.

Adding to 140502642 its reverse (246205041), we get a palindrome (386707683).

The spelling of 140502642 in words is "one hundred forty million, five hundred two thousand, six hundred forty-two".