940402 has 4 divisors (see below), whose sum is σ = 1410606. Its totient is φ = 470200.

The previous prime is 940399. The next prime is 940403. The reversal of 940402 is 204049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204049 = 107 ⋅1907.

It can be written as a sum of positive squares in only one way, i.e., 625681 + 314721 = 791^2 + 561^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 940402.

It is not an unprimeable number, because it can be changed into a prime (940403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235099 + ... + 235102.

2⁹⁴⁰⁴⁰² is an apocalyptic number.

940402 is a deficient number, since it is larger than the sum of its proper divisors (470204).

940402 is a wasteful number, since it uses less digits than its factorization.

940402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470203.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 940402 is about 969.7432649934. The cubic root of 940402 is about 97.9725731940.

The spelling of 940402 in words is "nine hundred forty thousand, four hundred two".