403468989 has 24 divisors (see below), whose sum is σ = 682681248. Its totient is φ = 209593440.

The previous prime is 403468969. The next prime is 403468991. The reversal of 403468989 is 989864304.

It is a happy number.

It is not a de Polignac number, because 403468989 - 2⁸ = 403468733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403468969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123142 + ... + 126375.

It is an arithmetic number, because the mean of its divisors is an integer number (28445052).

Almost surely, 2^403468989 is an apocalyptic number.

403468989 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

403468989 is a deficient number, since it is larger than the sum of its proper divisors (279212259).

403468989 is a wasteful number, since it uses less digits than its factorization.

403468989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249545 (or 249538 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 403468989 is about 20086.5375064992. The cubic root of 403468989 is about 738.9301492913.

The spelling of 403468989 in words is "four hundred three million, four hundred sixty-eight thousand, nine hundred eighty-nine".