3657149412 has 192 divisors, whose sum is σ = 11166382080. Its totient is φ = 906246144.

The previous prime is 3657149399. The next prime is 3657149413. The reversal of 3657149412 is 2149417563.

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

It is not an unprimeable number, because it can be changed into a prime (3657149413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1002063 + ... + 1005705.

It is an arithmetic number, because the mean of its divisors is an integer number (58158240).

Almost surely, 2^3657149412 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 3657149412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5583191040).

3657149412 is an abundant number, since it is smaller than the sum of its proper divisors (7509232668).

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

3657149412 is a wasteful number, since it uses less digits than its factorization.

3657149412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3728 counting only the distinct ones).

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

The square root of 3657149412 is about 60474.3698768329. The cubic root of 3657149412 is about 1540.6863489221.

The spelling of 3657149412 in words is "three billion, six hundred fifty-seven million, one hundred forty-nine thousand, four hundred twelve".