1426615500 has 96 divisors (see below), whose sum is σ = 4255812288. Its totient is φ = 371136000.

The previous prime is 1426615451. The next prime is 1426615507. The reversal of 1426615500 is 55166241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1426615507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49902 + ... + 73098.

It is an arithmetic number, because the mean of its divisors is an integer number (44331378).

Almost surely, 2^1426615500 is an apocalyptic number.

1426615500 is a gapful number since it is divisible by the number (10) 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 1426615500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127906144).

1426615500 is an abundant number, since it is smaller than the sum of its proper divisors (2829196788).

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

1426615500 is a wasteful number, since it uses less digits than its factorization.

1426615500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23260 (or 23248 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1426615500 is about 37770.5639354246. The cubic root of 1426615500 is about 1125.7336449218.

The spelling of 1426615500 in words is "one billion, four hundred twenty-six million, six hundred fifteen thousand, five hundred".