140749458 has 16 divisors (see below), whose sum is σ = 281961120. Its totient is φ = 46839456.

The previous prime is 140749451. The next prime is 140749471. The reversal of 140749458 is 854947041.

It is not an unprimeable number, because it can be changed into a prime (140749451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15235 + ... + 22662.

It is an arithmetic number, because the mean of its divisors is an integer number (17622570).

Almost surely, 2^140749458 is an apocalyptic number.

140749458 is an abundant number, since it is smaller than the sum of its proper divisors (141211662).

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

140749458 is a wasteful number, since it uses less digits than its factorization.

140749458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38521.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 140749458 is about 11863.7876751061. The cubic root of 140749458 is about 520.1743227179.

It can be divided in two parts, 14074 and 9458, that added together give a palindrome (23532).

The spelling of 140749458 in words is "one hundred forty million, seven hundred forty-nine thousand, four hundred fifty-eight".