940431 has 4 divisors (see below), whose sum is σ = 1253912. Its totient is φ = 626952.

The previous prime is 940421. The next prime is 940469. The reversal of 940431 is 134049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134049 = 3 ⋅44683.

It is not a de Polignac number, because 940431 - 2⁵ = 940399 is a prime.

It is a super-2 number, since 2×940431² = 1768820931522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 940398 and 940407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156736 + ... + 156741.

It is an arithmetic number, because the mean of its divisors is an integer number (313478).

2⁹⁴⁰⁴³¹ is an apocalyptic number.

940431 is a deficient number, since it is larger than the sum of its proper divisors (313481).

940431 is a wasteful number, since it uses less digits than its factorization.

940431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313480.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 940431 is about 969.7582172892. The cubic root of 940431 is about 97.9735802723.

The spelling of 940431 in words is "nine hundred forty thousand, four hundred thirty-one".