3855157340 has 48 divisors (see below), whose sum is σ = 8481110400. Its totient is φ = 1470024192.

The previous prime is 3855157321. The next prime is 3855157343. The reversal of 3855157340 is 437515583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855157343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3752 + ... + 87888.

It is an arithmetic number, because the mean of its divisors is an integer number (176689800).

Almost surely, 2^3855157340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3855157340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4240555200).

3855157340 is an abundant number, since it is smaller than the sum of its proper divisors (4625953060).

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

3855157340 is a wasteful number, since it uses less digits than its factorization.

3855157340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84254 (or 84252 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 3855157340 is about 62089.9133515259. The cubic root of 3855157340 is about 1568.0047327143.

The spelling of 3855157340 in words is "three billion, eight hundred fifty-five million, one hundred fifty-seven thousand, three hundred forty".