307949000 has 64 divisors (see below), whose sum is σ = 727974000. Its totient is φ = 121920000.

The previous prime is 307948973. The next prime is 307949003. The reversal of 307949000 is 949703.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 18472804 + 289476196 = 4298^2 + 17014^2 .

It is not an unprimeable number, because it can be changed into a prime (307949003) 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, 99476 + ... + 102524.

Almost surely, 2^307949000 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 307949000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363987000).

307949000 is an abundant number, since it is smaller than the sum of its proper divisors (420025000).

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

307949000 is a wasteful number, since it uses less digits than its factorization.

307949000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171 (or 3157 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 307949000 is about 17548.4757172810. The cubic root of 307949000 is about 675.2940648300.

The spelling of 307949000 in words is "three hundred seven million, nine hundred forty-nine thousand".