451420000 has 60 divisors (see below), whose sum is σ = 1110610116. Its totient is φ = 180560000.

The previous prime is 451419979. The next prime is 451420009. The reversal of 451420000 is 24154.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451420009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8715 + ... + 31285.

Almost surely, 2^451420000 is an apocalyptic number.

451420000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555305058).

451420000 is an abundant number, since it is smaller than the sum of its proper divisors (659190116).

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

451420000 is an equidigital number, since it uses as much as digits as its factorization.

451420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22601 (or 22578 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 451420000 is about 21246.6467942591. The cubic root of 451420000 is about 767.1146300335.

Adding to 451420000 its reverse (24154), we get a palindrome (451444154).

The spelling of 451420000 in words is "four hundred fifty-one million, four hundred twenty thousand".