453871890 has 32 divisors (see below), whose sum is σ = 1210325760. Its totient is φ = 121032432.

The previous prime is 453871889. The next prime is 453871921. The reversal of 453871890 is 98178354.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840234 + ... + 840773.

It is an arithmetic number, because the mean of its divisors is an integer number (37822680).

Almost surely, 2^453871890 is an apocalyptic number.

453871890 is an abundant number, since it is smaller than the sum of its proper divisors (756453870).

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

453871890 is a wasteful number, since it uses less digits than its factorization.

453871890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681023 (or 1681017 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 453871890 is about 21304.2692904497. The cubic root of 453871890 is about 768.5009853797.

The spelling of 453871890 in words is "four hundred fifty-three million, eight hundred seventy-one thousand, eight hundred ninety".