140490240 has 160 divisors (see below), whose sum is σ = 490254336. Its totient is φ = 34037760.

The previous prime is 140490197. The next prime is 140490263. The reversal of 140490240 is 42094041.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 140490240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83649 + ... + 85311.

Almost surely, 2^140490240 is an apocalyptic number.

140490240 is a gapful number since it is divisible by the number (10) 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 140490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245127168).

140490240 is an abundant number, since it is smaller than the sum of its proper divisors (349764096).

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

140490240 is a wasteful number, since it uses less digits than its factorization.

140490240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700 (or 1684 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 140490240 is about 11852.8578832280. The cubic root of 140490240 is about 519.8547918020.

The spelling of 140490240 in words is "one hundred forty million, four hundred ninety thousand, two hundred forty".