1451420028 has 36 divisors (see below), whose sum is σ = 3673600840. Its totient is φ = 483182496.

The previous prime is 1451419997. The next prime is 1451420029. The reversal of 1451420028 is 8200241541.

1451420028 is a `hidden beast` number, since 1 + 451 + 4 + 200 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1451419983 and 1451420010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451420029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2718 + ... + 53946.

Almost surely, 2^1451420028 is an apocalyptic number.

1451420028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1451420028 is an abundant number, since it is smaller than the sum of its proper divisors (2222180812).

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

1451420028 is a wasteful number, since it uses less digits than its factorization.

1451420028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52026 (or 52021 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 1451420028 is about 38097.5068475616. The cubic root of 1451420028 is about 1132.2205605598.

Adding to 1451420028 its reverse (8200241541), we get a palindrome (9651661569).

The spelling of 1451420028 in words is "one billion, four hundred fifty-one million, four hundred twenty thousand, twenty-eight".