407942 has 4 divisors (see below), whose sum is σ = 611916. Its totient is φ = 203970.

The previous prime is 407923. The next prime is 407947. The reversal of 407942 is 249704.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101984 + ... + 101987.

It is an arithmetic number, because the mean of its divisors is an integer number (152979).

2⁴⁰⁷⁹⁴² is an apocalyptic number.

407942 is a deficient number, since it is larger than the sum of its proper divisors (203974).

407942 is a wasteful number, since it uses less digits than its factorization.

407942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203973.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 407942 is about 638.7033740321. The cubic root of 407942 is about 74.1650806938.

The spelling of 407942 in words is "four hundred seven thousand, nine hundred forty-two".