1864523480 has 64 divisors (see below), whose sum is σ = 4247100000. Its totient is φ = 736625664.

The previous prime is 1864523459. The next prime is 1864523513. The reversal of 1864523480 is 843254681.

It is a super-3 number, since 3×1864523480³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2175212 + ... + 2176068.

Almost surely, 2^1864523480 is an apocalyptic number.

1864523480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1864523480 is an abundant number, since it is smaller than the sum of its proper divisors (2382576520).

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

1864523480 is a wasteful number, since it uses less digits than its factorization.

1864523480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1864523480 is about 43180.1282999483. The cubic root of 1864523480 is about 1230.8050956656.

The spelling of 1864523480 in words is "one billion, eight hundred sixty-four million, five hundred twenty-three thousand, four hundred eighty".