1812429741 has 12 divisors (see below), whose sum is σ = 2550456672. Its totient is φ = 1144691784.

The previous prime is 1812429691. The next prime is 1812429803. The reversal of 1812429741 is 1479242181.

It is not a de Polignac number, because 1812429741 - 2⁶ = 1812429677 is a prime.

It is a super-2 number, since 2×1812429741² = 6569803132122654162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1812429741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812429841) 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, 835681 + ... + 837846.

It is an arithmetic number, because the mean of its divisors is an integer number (212538056).

Almost surely, 2^1812429741 is an apocalyptic number.

It is an amenable number.

1812429741 is a deficient number, since it is larger than the sum of its proper divisors (738026931).

1812429741 is a wasteful number, since it uses less digits than its factorization.

1812429741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673568 (or 1673549 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 1812429741 is about 42572.6407567113. The cubic root of 1812429741 is about 1219.2339859006.

The spelling of 1812429741 in words is "one billion, eight hundred twelve million, four hundred twenty-nine thousand, seven hundred forty-one".