1901242530 has 80 divisors (see below), whose sum is σ = 5577004224. Its totient is φ = 460905120.

The previous prime is 1901242507. The next prime is 1901242531. The reversal of 1901242530 is 352421091.

1901242530 is a `hidden beast` number, since 1 + 9 + 0 + 124 + 2 + 530 = 666.

1901242530 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1901242530² = 7229446315761601800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1901242494 and 1901242503.

It is not an unprimeable number, because it can be changed into a prime (1901242531) 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 39 ways as a sum of consecutive naturals, for example, 97782 + ... + 115601.

Almost surely, 2^1901242530 is an apocalyptic number.

1901242530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1901242530 is an abundant number, since it is smaller than the sum of its proper divisors (3675761694).

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

1901242530 is a wasteful number, since it uses less digits than its factorization.

1901242530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213413 (or 213404 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1901242530 is about 43603.2399025577. The cubic root of 1901242530 is about 1238.8322621742.

The spelling of 1901242530 in words is "one billion, nine hundred one million, two hundred forty-two thousand, five hundred thirty".