1840315764 has 24 divisors (see below), whose sum is σ = 4907508928. Its totient is φ = 525804480.

The previous prime is 1840315759. The next prime is 1840315769. The reversal of 1840315764 is 4675130481.

It is an interprime number because it is at equal distance from previous prime (1840315759) and next prime (1840315769).

It is a super-2 number, since 2×1840315764² = 6773524222453807392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840315769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954177 + ... + 10954344.

Almost surely, 2^1840315764 is an apocalyptic number.

1840315764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1840315764 is an abundant number, since it is smaller than the sum of its proper divisors (3067193164).

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

1840315764 is a wasteful number, since it uses less digits than its factorization.

1840315764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21908535 (or 21908533 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1840315764 is about 42898.9016642618. The cubic root of 1840315764 is about 1225.4552275058.

The spelling of 1840315764 in words is "one billion, eight hundred forty million, three hundred fifteen thousand, seven hundred sixty-four".