1872242801 has 12 divisors (see below), whose sum is σ = 2216223156. Its totient is φ = 1571111520.

The previous prime is 1872242797. The next prime is 1872242831. The reversal of 1872242801 is 1082422781.

It can be written as a sum of positive squares in 2 ways, for example, as 865830625 + 1006412176 = 29425^2 + 31724^2 .

It is not a de Polignac number, because 1872242801 - 2² = 1872242797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1872242831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593546 + ... + 596691.

It is an arithmetic number, because the mean of its divisors is an integer number (184685263).

Almost surely, 2^1872242801 is an apocalyptic number.

1872242801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1872242801 is a deficient number, since it is larger than the sum of its proper divisors (343980355).

1872242801 is a wasteful number, since it uses less digits than its factorization.

1872242801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190272 (or 1190261 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 1872242801 is about 43269.4210846413. The cubic root of 1872242801 is about 1232.5013106534.

The spelling of 1872242801 in words is "one billion, eight hundred seventy-two million, two hundred forty-two thousand, eight hundred one".