407642 has 4 divisors (see below), whose sum is σ = 611466. Its totient is φ = 203820.

The previous prime is 407639. The next prime is 407651. The reversal of 407642 is 246704.

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., 358801 + 48841 = 599^2 + 221^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 407642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101909 + ... + 101912.

2⁴⁰⁷⁶⁴² is an apocalyptic number.

407642 is a deficient number, since it is larger than the sum of its proper divisors (203824).

407642 is a wasteful number, since it uses less digits than its factorization.

407642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203823.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 407642 is about 638.4684800364. The cubic root of 407642 is about 74.1468959351.

The spelling of 407642 in words is "four hundred seven thousand, six hundred forty-two".