1887428572 has 12 divisors (see below), whose sum is σ = 3357147976. Its totient is φ = 928243440.

The previous prime is 1887428561. The next prime is 1887428573. The reversal of 1887428572 is 2758247881.

It is a super-2 number, since 2×1887428572² = 7124773228803918368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887428573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867438 + ... + 3867925.

Almost surely, 2^1887428572 is an apocalyptic number.

It is an amenable number.

1887428572 is a deficient number, since it is larger than the sum of its proper divisors (1469719404).

1887428572 is a wasteful number, since it uses less digits than its factorization.

1887428572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735428 (or 7735426 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 52.

The square root of 1887428572 is about 43444.5459407737. The cubic root of 1887428572 is about 1235.8246164921.

The spelling of 1887428572 in words is "one billion, eight hundred eighty-seven million, four hundred twenty-eight thousand, five hundred seventy-two".