3154378920 has 256 divisors, whose sum is σ = 12040704000. Its totient is φ = 655361280.

The previous prime is 3154378919. The next prime is 3154378937. The reversal of 3154378920 is 298734513.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 449277 + ... + 456243.

It is an arithmetic number, because the mean of its divisors is an integer number (47034000).

Almost surely, 2^3154378920 is an apocalyptic number.

3154378920 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 3154378920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6020352000).

3154378920 is an abundant number, since it is smaller than the sum of its proper divisors (8886325080).

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

3154378920 is a wasteful number, since it uses less digits than its factorization.

3154378920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 6995 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 3154378920 is about 56163.8577734828. The cubic root of 3154378920 is about 1466.5761585563.

The spelling of 3154378920 in words is "three billion, one hundred fifty-four million, three hundred seventy-eight thousand, nine hundred twenty".