403678 has 16 divisors (see below), whose sum is σ = 673920. Its totient is φ = 179800.

The previous prime is 403661. The next prime is 403679. The reversal of 403678 is 876304.

403678 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143 + ... + 1453.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2⁴⁰³⁶⁷⁸ is an apocalyptic number.

403678 is a deficient number, since it is larger than the sum of its proper divisors (270242).

403678 is a wasteful number, since it uses less digits than its factorization.

403678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 403678 is about 635.3565927886. The cubic root of 403678 is about 73.9057724456.

It can be divided in two parts, 4036 and 78, that added together give a palindrome (4114).

The spelling of 403678 in words is "four hundred three thousand, six hundred seventy-eight".