1427072500 has 60 divisors (see below), whose sum is σ = 3566583328. Its totient is φ = 489276000.

The previous prime is 1427072489. The next prime is 1427072533. The reversal of 1427072500 is 52707241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23274 + ... + 58273.

Almost surely, 2^1427072500 is an apocalyptic number.

1427072500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427072500 is an abundant number, since it is smaller than the sum of its proper divisors (2139510828).

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

1427072500 is an equidigital number, since it uses as much as digits as its factorization.

1427072500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81578 (or 81561 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 1427072500 is about 37776.6131356425. The cubic root of 1427072500 is about 1125.8538373987.

Adding to 1427072500 its reverse (52707241), we get a palindrome (1479779741).

The spelling of 1427072500 in words is "one billion, four hundred twenty-seven million, seventy-two thousand, five hundred".