3139445400 has 288 divisors, whose sum is σ = 12046728960. Its totient is φ = 662238720.

The previous prime is 3139445341. The next prime is 3139445429. The reversal of 3139445400 is 45449313.

It is a super-2 number, since 2×3139445400² = 19712234839162320000, 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 71 ways as a sum of consecutive naturals, for example, 707589 + ... + 712011.

It is an arithmetic number, because the mean of its divisors is an integer number (41828920).

Almost surely, 2^3139445400 is an apocalyptic number.

3139445400 is a gapful number since it is divisible by the number (30) 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 3139445400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6023364480).

3139445400 is an abundant number, since it is smaller than the sum of its proper divisors (8907283560).

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

3139445400 is a wasteful number, since it uses less digits than its factorization.

3139445400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4453 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 3139445400 is about 56030.7540552508. The cubic root of 3139445400 is about 1464.2581325419.

The spelling of 3139445400 in words is "three billion, one hundred thirty-nine million, four hundred forty-five thousand, four hundred".