307966742 has 4 divisors (see below), whose sum is σ = 461950116. Its totient is φ = 153983370.

The previous prime is 307966717. The next prime is 307966753. The reversal of 307966742 is 247669703.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247669703 = 3019 ⋅82037.

It is a junction number, because it is equal to n+sod(n) for n = 307966693 and 307966702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76991684 + ... + 76991687.

It is an arithmetic number, because the mean of its divisors is an integer number (115487529).

Almost surely, 2^307966742 is an apocalyptic number.

307966742 is a deficient number, since it is larger than the sum of its proper divisors (153983374).

307966742 is a wasteful number, since it uses less digits than its factorization.

307966742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153983373.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 307966742 is about 17548.9812239913. The cubic root of 307966742 is about 675.3070332514.

The spelling of 307966742 in words is "three hundred seven million, nine hundred sixty-six thousand, seven hundred forty-two".