140426491240 has 256 divisors, whose sum is σ = 389952000000. Its totient is φ = 45366241536.

The previous prime is 140426491223. The next prime is 140426491273. The reversal of 140426491240 is 42194624041.

It is a self number, because there is not a number n which added to its sum of digits gives 140426491240.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51873967 + ... + 51876673.

It is an arithmetic number, because the mean of its divisors is an integer number (1523250000).

Almost surely, 2^140426491240 is an apocalyptic number.

140426491240 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 140426491240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194976000000).

140426491240 is an abundant number, since it is smaller than the sum of its proper divisors (249525508760).

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

140426491240 is a wasteful number, since it uses less digits than its factorization.

140426491240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 140426491240 in words is "one hundred forty billion, four hundred twenty-six million, four hundred ninety-one thousand, two hundred forty".