140995998 has 192 divisors, whose sum is σ = 400377600. Its totient is φ = 36158400.

The previous prime is 140995993. The next prime is 140996033. The reversal of 140995998 is 899599041.

140995998 is a `hidden beast` number, since 1 + 40 + 9 + 9 + 599 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140995991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4548243 + ... + 4548273.

It is an arithmetic number, because the mean of its divisors is an integer number (2085300).

Almost surely, 2^140995998 is an apocalyptic number.

140995998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140995998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200188800).

140995998 is an abundant number, since it is smaller than the sum of its proper divisors (259381602).

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

140995998 is a wasteful number, since it uses less digits than its factorization.

140995998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The square root of 140995998 is about 11874.1735712428. The cubic root of 140995998 is about 520.4778620089.

The spelling of 140995998 in words is "one hundred forty million, nine hundred ninety-five thousand, nine hundred ninety-eight".