140736436 has 12 divisors (see below), whose sum is σ = 252296100. Its totient is φ = 68651840.

The previous prime is 140736433. The next prime is 140736437. The reversal of 140736436 is 634637041.

It can be written as a sum of positive squares in 2 ways, for example, as 46840336 + 93896100 = 6844^2 + 9690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140736433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428911 + ... + 429238.

It is an arithmetic number, because the mean of its divisors is an integer number (21024675).

Almost surely, 2^140736436 is an apocalyptic number.

It is an amenable number.

140736436 is a deficient number, since it is larger than the sum of its proper divisors (111559664).

140736436 is a wasteful number, since it uses less digits than its factorization.

140736436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858194 (or 858192 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 140736436 is about 11863.2388494879. The cubic root of 140736436 is about 520.1582802193.

The spelling of 140736436 in words is "one hundred forty million, seven hundred thirty-six thousand, four hundred thirty-six".