1840137047 has 8 divisors (see below), whose sum is σ = 2104989600. Its totient is φ = 1575778464.

The previous prime is 1840137007. The next prime is 1840137049. The reversal of 1840137047 is 7407310481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1840137047 - 2⁸ = 1840136791 is a prime.

It is a super-2 number, since 2×1840137047² = 6772208703483760418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1840136998 and 1840137016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840137049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115472 + ... + 130437.

It is an arithmetic number, because the mean of its divisors is an integer number (263123700).

Almost surely, 2^1840137047 is an apocalyptic number.

1840137047 is a deficient number, since it is larger than the sum of its proper divisors (264852553).

1840137047 is a wasteful number, since it uses less digits than its factorization.

1840137047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246985.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1840137047 is about 42896.8186116407. The cubic root of 1840137047 is about 1225.4155573622.

The spelling of 1840137047 in words is "one billion, eight hundred forty million, one hundred thirty-seven thousand, forty-seven".