4649139924 has 144 divisors (see below), whose sum is σ = 13025658240. Its totient is φ = 1281772800.

The previous prime is 4649139899. The next prime is 4649139931. The reversal of 4649139924 is 4299319464.

It is a super-2 number, since 2×4649139924² = 43229004065861451552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1338462 + ... + 1341930.

It is an arithmetic number, because the mean of its divisors is an integer number (90455960).

Almost surely, 2^4649139924 is an apocalyptic number.

4649139924 is a gapful number since it is divisible by the number (44) 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 4649139924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6512829120).

4649139924 is an abundant number, since it is smaller than the sum of its proper divisors (8376518316).

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

4649139924 is a wasteful number, since it uses less digits than its factorization.

4649139924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582 (or 3569 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 4649139924 is about 68184.6018100861. The cubic root of 4649139924 is about 1669.0046208398.

The spelling of 4649139924 in words is "four billion, six hundred forty-nine million, one hundred thirty-nine thousand, nine hundred twenty-four".