140404992 has 288 divisors, whose sum is σ = 480748800. Its totient is φ = 36126720.

The previous prime is 140404987. The next prime is 140404997. The reversal of 140404992 is 299404041.

It is an interprime number because it is at equal distance from previous prime (140404987) and next prime (140404997).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140404997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3424492 + ... + 3424532.

Almost surely, 2^140404992 is an apocalyptic number.

140404992 is a gapful number since it is divisible by the number (12) 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 140404992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240374400).

140404992 is an abundant number, since it is smaller than the sum of its proper divisors (340343808).

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

140404992 is an equidigital number, since it uses as much as digits as its factorization.

140404992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 140404992 is about 11849.2612427948. The cubic root of 140404992 is about 519.7496230541.

The spelling of 140404992 in words is "one hundred forty million, four hundred four thousand, nine hundred ninety-two".