140244397782 has 32 divisors (see below), whose sum is σ = 286501691520. Its totient is φ = 45755760960.

The previous prime is 140244397757. The next prime is 140244397817. The reversal of 140244397782 is 287793442041.

It is a super-2 number, since 2×140244397782² (a number of 23 digits) contains 22 as substring.

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, 1164732 + ... + 1279487.

It is an arithmetic number, because the mean of its divisors is an integer number (8953177860).

Almost surely, 2^140244397782 is an apocalyptic number.

140244397782 is an abundant number, since it is smaller than the sum of its proper divisors (146257293738).

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

140244397782 is a wasteful number, since it uses less digits than its factorization.

140244397782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444428.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 140244397782 in words is "one hundred forty billion, two hundred forty-four million, three hundred ninety-seven thousand, seven hundred eighty-two".