407138 has 4 divisors (see below), whose sum is σ = 610710. Its totient is φ = 203568.

The previous prime is 407137. The next prime is 407149. The reversal of 407138 is 831704.

It is a happy number.

407138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 405769 + 1369 = 637^2 + 37^2 .

It is a super-2 number, since 2×407138² = 331522702088, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 407138.

It is not an unprimeable number, because it can be changed into a prime (407137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101783 + ... + 101786.

2⁴⁰⁷¹³⁸ is an apocalyptic number.

407138 is a deficient number, since it is larger than the sum of its proper divisors (203572).

407138 is a wasteful number, since it uses less digits than its factorization.

407138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203571.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 407138 is about 638.0736634590. The cubic root of 407138 is about 74.1163254449.

It can be divided in two parts, 407 and 138, that added together give a palindrome (545).

The spelling of 407138 in words is "four hundred seven thousand, one hundred thirty-eight".