403453872 has 60 divisors (see below), whose sum is σ = 1170940680. Its totient is φ = 134483328.

The previous prime is 403453867. The next prime is 403453873. The reversal of 403453872 is 278354304.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (403453873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47997 + ... + 55772.

It is an arithmetic number, because the mean of its divisors is an integer number (19515678).

Almost surely, 2^403453872 is an apocalyptic number.

It is an amenable number.

403453872 is an abundant number, since it is smaller than the sum of its proper divisors (767486808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403453872 is a wasteful number, since it uses less digits than its factorization.

403453872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103792 (or 103774 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 403453872 is about 20086.1612061638. The cubic root of 403453872 is about 738.9209205386.

The spelling of 403453872 in words is "four hundred three million, four hundred fifty-three thousand, eight hundred seventy-two".