140211240 has 192 divisors, whose sum is σ = 482751360. Its totient is φ = 32378880.

The previous prime is 140211217. The next prime is 140211251. The reversal of 140211240 is 42112041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 450685 + ... + 450995.

It is an arithmetic number, because the mean of its divisors is an integer number (2514330).

Almost surely, 2^140211240 is an apocalyptic number.

140211240 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 140211240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241375680).

140211240 is an abundant number, since it is smaller than the sum of its proper divisors (342540120).

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

140211240 is a wasteful number, since it uses less digits than its factorization.

140211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 140211240 is about 11841.0827207650. The cubic root of 140211240 is about 519.5104366724.

Adding to 140211240 its reverse (42112041), we get a palindrome (182323281).

The spelling of 140211240 in words is "one hundred forty million, two hundred eleven thousand, two hundred forty".