1853402412 has 24 divisors (see below), whose sum is σ = 4473730800. Its totient is φ = 596497216.

The previous prime is 1853402381. The next prime is 1853402413. The reversal of 1853402412 is 2142043581.

It is a self number, because there is not a number n which added to its sum of digits gives 1853402412.

It is not an unprimeable number, because it can be changed into a prime (1853402413) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2662587 + ... + 2663282.

It is an arithmetic number, because the mean of its divisors is an integer number (186405450).

Almost surely, 2^1853402412 is an apocalyptic number.

1853402412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1853402412 is an abundant number, since it is smaller than the sum of its proper divisors (2620328388).

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

1853402412 is a wasteful number, since it uses less digits than its factorization.

1853402412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325905 (or 5325903 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1853402412 is about 43051.1604024793. The cubic root of 1853402412 is about 1228.3531426782.

Adding to 1853402412 its reverse (2142043581), we get a palindrome (3995445993).

The spelling of 1853402412 in words is "one billion, eight hundred fifty-three million, four hundred two thousand, four hundred twelve".