940978 has 4 divisors (see below), whose sum is σ = 1411470. Its totient is φ = 470488.

The previous prime is 940957. The next prime is 940981. The reversal of 940978 is 879049.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 879049 = 43 ⋅20443.

It can be written as a sum of positive squares in only one way, i.e., 683929 + 257049 = 827^2 + 507^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235243 + ... + 235246.

2⁹⁴⁰⁹⁷⁸ is an apocalyptic number.

940978 is a deficient number, since it is larger than the sum of its proper divisors (470492).

940978 is a wasteful number, since it uses less digits than its factorization.

940978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470491.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 940978 is about 970.0402053523. The cubic root of 940978 is about 97.9925719762.

The spelling of 940978 in words is "nine hundred forty thousand, nine hundred seventy-eight".