4046139840 has 224 divisors, whose sum is σ = 13436559360. Its totient is φ = 1030348800.

The previous prime is 4046139793. The next prime is 4046139887. The reversal of 4046139840 is 489316404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4046139793) and next prime (4046139887).

It is a congruent number.

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, 2350180 + ... + 2351900.

It is an arithmetic number, because the mean of its divisors is an integer number (59984640).

Almost surely, 2^4046139840 is an apocalyptic number.

4046139840 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 4046139840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6718279680).

4046139840 is an abundant number, since it is smaller than the sum of its proper divisors (9390419520).

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

4046139840 is a wasteful number, since it uses less digits than its factorization.

4046139840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 4046139840 is about 63609.2747954259. The cubic root of 4046139840 is about 1593.4812690771.

The spelling of 4046139840 in words is "four billion, forty-six million, one hundred thirty-nine thousand, eight hundred forty".