2042142500 has 30 divisors (see below), whose sum is σ = 4465762686. Its totient is φ = 816856000.

The previous prime is 2042142467. The next prime is 2042142551. The reversal of 2042142500 is 52412402.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1303498816 + 738643684 = 36104^2 + 27178^2 .

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

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 9 ways as a sum of consecutive naturals, for example, 405929 + ... + 410928.

Almost surely, 2^2042142500 is an apocalyptic number.

2042142500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042142500 is an abundant number, since it is smaller than the sum of its proper divisors (2423620186).

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

2042142500 is an equidigital number, since it uses as much as digits as its factorization.

2042142500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816881 (or 816864 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2042142500 is about 45190.0708120711. The cubic root of 2042142500 is about 1268.7089821484.

Adding to 2042142500 its reverse (52412402), we get a palindrome (2094554902).

The spelling of 2042142500 in words is "two billion, forty-two million, one hundred forty-two thousand, five hundred".