307500042 has 8 divisors (see below), whose sum is σ = 615000096. Its totient is φ = 102500012.

The previous prime is 307500023. The next prime is 307500049. The reversal of 307500042 is 240005703.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

307500042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 307499991 and 307500018.

It is not an unprimeable number, because it can be changed into a prime (307500049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25624998 + ... + 25625009.

It is an arithmetic number, because the mean of its divisors is an integer number (76875012).

Almost surely, 2^307500042 is an apocalyptic number.

307500042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

307500042 is a wasteful number, since it uses less digits than its factorization.

307500042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51250012.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 307500042 is about 17535.6791143086. The cubic root of 307500042 is about 674.9657354349.

Adding to 307500042 its reverse (240005703), we get a palindrome (547505745).

The spelling of 307500042 in words is "three hundred seven million, five hundred thousand, forty-two".