1887420416 has 90 divisors (see below), whose sum is σ = 4392875088. Its totient is φ = 808550400.

The previous prime is 1887420391. The next prime is 1887420439. The reversal of 1887420416 is 6140247881.

It is a super-2 number, since 2×1887420416² = 7124711653467226112, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 801641 + ... + 803991.

Almost surely, 2^1887420416 is an apocalyptic number.

1887420416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1887420416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2196437544).

1887420416 is an abundant number, since it is smaller than the sum of its proper divisors (2505454672).

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

1887420416 is an frugal number, since it uses more digits than its factorization.

1887420416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393 (or 2360 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 1887420416 is about 43444.4520738840. The cubic root of 1887420416 is about 1235.8228363982.

The spelling of 1887420416 in words is "one billion, eight hundred eighty-seven million, four hundred twenty thousand, four hundred sixteen".