4194787840 has 160 divisors (see below), whose sum is σ = 10578180096. Its totient is φ = 1592279040.

The previous prime is 4194787837. The next prime is 4194787889. The reversal of 4194787840 is 487874914.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×4194787840² = 35192490045223731200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11245894 + ... + 11246266.

Almost surely, 2^4194787840 is an apocalyptic number.

4194787840 is a gapful number since it is divisible by the number (40) 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 4194787840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5289090048).

4194787840 is an abundant number, since it is smaller than the sum of its proper divisors (6383392256).

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

4194787840 is a wasteful number, since it uses less digits than its factorization.

4194787840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The square root of 4194787840 is about 64767.1818130139. The cubic root of 4194787840 is about 1612.7609532203.

The spelling of 4194787840 in words is "four billion, one hundred ninety-four million, seven hundred eighty-seven thousand, eight hundred forty".