207538742 has 4 divisors (see below), whose sum is σ = 311308116. Its totient is φ = 103769370.

The previous prime is 207538663. The next prime is 207538759. The reversal of 207538742 is 247835702.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 207538696 and 207538705.

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, 51884684 + ... + 51884687.

It is an arithmetic number, because the mean of its divisors is an integer number (77827029).

Almost surely, 2^207538742 is an apocalyptic number.

207538742 is a deficient number, since it is larger than the sum of its proper divisors (103769374).

207538742 is a wasteful number, since it uses less digits than its factorization.

207538742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103769373.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 207538742 is about 14406.2049825761. The cubic root of 207538742 is about 592.0609167744.

The spelling of 207538742 in words is "two hundred seven million, five hundred thirty-eight thousand, seven hundred forty-two".