1807142490 has 36 divisors (see below), whose sum is σ = 4699619262. Its totient is φ = 481797120.

The previous prime is 1807142479. The next prime is 1807142543. The reversal of 1807142490 is 942417081.

1807142490 is a `hidden beast` number, since 1 + 80 + 71 + 424 + 90 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1760725521 + 46416969 = 41961^2 + 6813^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 401050 + ... + 405530.

Almost surely, 2^1807142490 is an apocalyptic number.

1807142490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1807142490 is an abundant number, since it is smaller than the sum of its proper divisors (2892476772).

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

1807142490 is an frugal number, since it uses more digits than its factorization.

1807142490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8975 (or 4491 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1807142490 is about 42510.4985856435. The cubic root of 1807142490 is about 1218.0472410839.

The spelling of 1807142490 in words is "one billion, eight hundred seven million, one hundred forty-two thousand, four hundred ninety".