140402298 has 16 divisors (see below), whose sum is σ = 281133216. Its totient is φ = 46746000.

The previous prime is 140402279. The next prime is 140402299. The reversal of 140402298 is 892204041.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140402299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7953 + ... + 18548.

It is an arithmetic number, because the mean of its divisors is an integer number (17570826).

Almost surely, 2^140402298 is an apocalyptic number.

140402298 is an abundant number, since it is smaller than the sum of its proper divisors (140730918).

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

140402298 is a wasteful number, since it uses less digits than its factorization.

140402298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27389.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 140402298 is about 11849.1475642765. The cubic root of 140402298 is about 519.7462988265.

The spelling of 140402298 in words is "one hundred forty million, four hundred two thousand, two hundred ninety-eight".