454228749 has 32 divisors (see below), whose sum is σ = 733913600. Its totient is φ = 275970240.

The previous prime is 454228657. The next prime is 454228757. The reversal of 454228749 is 947822454.

It is not a de Polignac number, because 454228749 - 2⁸ = 454228493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454228799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19539 + ... + 35919.

It is an arithmetic number, because the mean of its divisors is an integer number (22934800).

Almost surely, 2^454228749 is an apocalyptic number.

It is an amenable number.

454228749 is a deficient number, since it is larger than the sum of its proper divisors (279684851).

454228749 is a wasteful number, since it uses less digits than its factorization.

454228749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16482 (or 16476 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 454228749 is about 21312.6429379371. The cubic root of 454228749 is about 768.7023451721.

The spelling of 454228749 in words is "four hundred fifty-four million, two hundred twenty-eight thousand, seven hundred forty-nine".