140049450 has 72 divisors (see below), whose sum is σ = 379142400. Its totient is φ = 37061280.

The previous prime is 140049443. The next prime is 140049457. The reversal of 140049450 is 54940041.

It is an interprime number because it is at equal distance from previous prime (140049443) and next prime (140049457).

It is a super-2 number, since 2×140049450² = 39227696890605000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140049457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61431 + ... + 63669.

Almost surely, 2^140049450 is an apocalyptic number.

140049450 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 140049450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189571200).

140049450 is an abundant number, since it is smaller than the sum of its proper divisors (239092950).

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

140049450 is a wasteful number, since it uses less digits than its factorization.

140049450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 140049450 is about 11834.2490256036. The cubic root of 140049450 is about 519.3105384251.

Adding to 140049450 its reverse (54940041), we get a palindrome (194989491).

The spelling of 140049450 in words is "one hundred forty million, forty-nine thousand, four hundred fifty".