403340138 has 16 divisors (see below), whose sum is σ = 612398880. Its totient is φ = 199218096.

The previous prime is 403340131. The next prime is 403340141. The reversal of 403340138 is 831043304.

It is not an unprimeable number, because it can be changed into a prime (403340131) 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, 78620 + ... + 83592.

It is an arithmetic number, because the mean of its divisors is an integer number (38274930).

Almost surely, 2^403340138 is an apocalyptic number.

403340138 is a deficient number, since it is larger than the sum of its proper divisors (209058742).

403340138 is a wasteful number, since it uses less digits than its factorization.

403340138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 403340138 is about 20083.3298533884. The cubic root of 403340138 is about 738.8514798614.

The spelling of 403340138 in words is "four hundred three million, three hundred forty thousand, one hundred thirty-eight".