140849280 has 640 divisors, whose sum is σ = 622036800. Its totient is φ = 29859840.

The previous prime is 140849273. The next prime is 140849297. The reversal of 140849280 is 82948041.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7413111 + ... + 7413129.

Almost surely, 2^140849280 is an apocalyptic number.

140849280 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 140849280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311018400).

140849280 is an abundant number, since it is smaller than the sum of its proper divisors (481187520).

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

140849280 is a wasteful number, since it uses less digits than its factorization.

140849280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 140849280 is about 11867.9939332644. The cubic root of 140849280 is about 520.2972659285.

The spelling of 140849280 in words is "one hundred forty million, eight hundred forty-nine thousand, two hundred eighty".