1238934742 has 4 divisors (see below), whose sum is σ = 1858402116. Its totient is φ = 619467370.

The previous prime is 1238934709. The next prime is 1238934787. The reversal of 1238934742 is 2474398321.

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

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, 309733684 + ... + 309733687.

It is an arithmetic number, because the mean of its divisors is an integer number (464600529).

Almost surely, 2^1238934742 is an apocalyptic number.

1238934742 is a deficient number, since it is larger than the sum of its proper divisors (619467374).

1238934742 is an equidigital number, since it uses as much as digits as its factorization.

1238934742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619467373.

The product of its digits is 290304, while the sum is 43.

The square root of 1238934742 is about 35198.5048261996. The cubic root of 1238934742 is about 1074.0293360322.

The spelling of 1238934742 in words is "one billion, two hundred thirty-eight million, nine hundred thirty-four thousand, seven hundred forty-two".