3885745440 has 48 divisors (see below), whose sum is σ = 12240099648. Its totient is φ = 1036198656.

The previous prime is 3885745421. The next prime is 3885745459. The reversal of 3885745440 is 445475883.

3885745440 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3885745421) and next prime (3885745459).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3885745440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4047172 + ... + 4048131.

It is an arithmetic number, because the mean of its divisors is an integer number (255002076).

Almost surely, 2^3885745440 is an apocalyptic number.

3885745440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3885745440 is an abundant number, since it is smaller than the sum of its proper divisors (8354354208).

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

3885745440 is a wasteful number, since it uses less digits than its factorization.

3885745440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8095321 (or 8095313 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 48.

The square root of 3885745440 is about 62335.7476894278. The cubic root of 3885745440 is about 1572.1408364649.

The spelling of 3885745440 in words is "three billion, eight hundred eighty-five million, seven hundred forty-five thousand, four hundred forty".