140002191450 has 192 divisors, whose sum is σ = 423444326400. Its totient is φ = 33731121600.

The previous prime is 140002191401. The next prime is 140002191491. The reversal of 140002191450 is 54191200041.

140002191450 is a `hidden beast` number, since 1 + 400 + 0 + 219 + 1 + 45 + 0 = 666.

It is a super-2 number, since 2×140002191450² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2391631 + ... + 2449469.

It is an arithmetic number, because the mean of its divisors is an integer number (2205439200).

Almost surely, 2^140002191450 is an apocalyptic number.

140002191450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140002191450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211722163200).

140002191450 is an abundant number, since it is smaller than the sum of its proper divisors (283442134950).

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

140002191450 is a wasteful number, since it uses less digits than its factorization.

140002191450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58034 (or 58023 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 140002191450 its reverse (54191200041), we get a palindrome (194193391491).

The spelling of 140002191450 in words is "one hundred forty billion, two million, one hundred ninety-one thousand, four hundred fifty".