451051400 has 24 divisors (see below), whose sum is σ = 1048694970. Its totient is φ = 180420480.

The previous prime is 451051379. The next prime is 451051409. The reversal of 451051400 is 4150154.

It can be written as a sum of positive squares in 3 ways, for example, as 303526084 + 147525316 = 17422^2 + 12146^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (451051409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1127429 + ... + 1127828.

Almost surely, 2^451051400 is an apocalyptic number.

451051400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451051400 is an abundant number, since it is smaller than the sum of its proper divisors (597643570).

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

451051400 is a wasteful number, since it uses less digits than its factorization.

451051400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255273 (or 2255264 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 451051400 is about 21237.9707128530. The cubic root of 451051400 is about 766.9057813277.

The spelling of 451051400 in words is "four hundred fifty-one million, fifty-one thousand, four hundred".