1864524040 has 32 divisors (see below), whose sum is σ = 4202982360. Its totient is φ = 744422400.

The previous prime is 1864524031. The next prime is 1864524041. The reversal of 1864524040 is 404254681.

It can be written as a sum of positive squares in 4 ways, for example, as 1023872004 + 840652036 = 31998^2 + 28994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1864523987 and 1864524005.

It is not an unprimeable number, because it can be changed into a prime (1864524041) 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, 21441 + ... + 64720.

Almost surely, 2^1864524040 is an apocalyptic number.

1864524040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1864524040 is an abundant number, since it is smaller than the sum of its proper divisors (2338458320).

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

1864524040 is a wasteful number, since it uses less digits than its factorization.

1864524040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86713 (or 86709 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 1864524040 is about 43180.1347844121. The cubic root of 1864524040 is about 1230.8052188876.

The spelling of 1864524040 in words is "one billion, eight hundred sixty-four million, five hundred twenty-four thousand, forty".