4640892840 has 128 divisors (see below), whose sum is σ = 15488496000. Its totient is φ = 1236063744.

The previous prime is 4640892821. The next prime is 4640892877. The reversal of 4640892840 is 482980464.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1098412 + ... + 1102628.

It is an arithmetic number, because the mean of its divisors is an integer number (121003875).

Almost surely, 2^4640892840 is an apocalyptic number.

4640892840 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 4640892840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7744248000).

4640892840 is an abundant number, since it is smaller than the sum of its proper divisors (10847603160).

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

4640892840 is a wasteful number, since it uses less digits than its factorization.

4640892840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256 (or 5246 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 4640892840 is about 68124.0988197275. The cubic root of 4640892840 is about 1668.0171573205.

The spelling of 4640892840 in words is "four billion, six hundred forty million, eight hundred ninety-two thousand, eight hundred forty".