451454649 has 64 divisors (see below), whose sum is σ = 698664960. Its totient is φ = 257748480.

The previous prime is 451454639. The next prime is 451454657. The reversal of 451454649 is 946454154.

It is not a de Polignac number, because 451454649 - 2¹² = 451450553 is a prime.

It is a super-2 number, since 2×451454649² = 407622600207426402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 451454649.

It is not an unprimeable number, because it can be changed into a prime (451454639) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1988674 + ... + 1988900.

It is an arithmetic number, because the mean of its divisors is an integer number (10916640).

Almost surely, 2^451454649 is an apocalyptic number.

It is an amenable number.

451454649 is a deficient number, since it is larger than the sum of its proper divisors (247210311).

451454649 is a wasteful number, since it uses less digits than its factorization.

451454649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350.

The product of its digits is 345600, while the sum is 42.

The square root of 451454649 is about 21247.4621778696. The cubic root of 451454649 is about 767.1342563052.

It can be divided in two parts, 45145 and 4649, that added together give a palindrome (49794).

The spelling of 451454649 in words is "four hundred fifty-one million, four hundred fifty-four thousand, six hundred forty-nine".