140890536 has 128 divisors (see below), whose sum is σ = 412646400. Its totient is φ = 44478720.

The previous prime is 140890523. The next prime is 140890549. The reversal of 140890536 is 635098041.

140890536 is a `hidden beast` number, since 1 + 40 + 89 + 0 + 536 = 666.

It is an interprime number because it is at equal distance from previous prime (140890523) and next prime (140890549).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140890536.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354690 + ... + 355086.

It is an arithmetic number, because the mean of its divisors is an integer number (3223800).

Almost surely, 2^140890536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140890536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206323200).

140890536 is an abundant number, since it is smaller than the sum of its proper divisors (271755864).

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

140890536 is a wasteful number, since it uses less digits than its factorization.

140890536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 140890536 is about 11869.7319262063. The cubic root of 140890536 is about 520.3480608598.

The spelling of 140890536 in words is "one hundred forty million, eight hundred ninety thousand, five hundred thirty-six".