1887140472 has 64 divisors (see below), whose sum is σ = 5493588480. Its totient is φ = 529007232.

The previous prime is 1887140467. The next prime is 1887140473. The reversal of 1887140472 is 2740417881.

It is a super-2 number, since 2×1887140472² = 7122598322120765568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887140473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97068 + ... + 114875.

It is an arithmetic number, because the mean of its divisors is an integer number (85837320).

Almost surely, 2^1887140472 is an apocalyptic number.

1887140472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1887140472 is an abundant number, since it is smaller than the sum of its proper divisors (3606448008).

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

1887140472 is a wasteful number, since it uses less digits than its factorization.

1887140472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212012 (or 212008 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 1887140472 is about 43441.2300930809. The cubic root of 1887140472 is about 1235.7617339025.

The spelling of 1887140472 in words is "one billion, eight hundred eighty-seven million, one hundred forty thousand, four hundred seventy-two".