1238723662 has 8 divisors (see below), whose sum is σ = 2027002392. Its totient is φ = 563056200.

The previous prime is 1238723653. The next prime is 1238723663. The reversal of 1238723662 is 2663278321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238723663) 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, 28152789 + ... + 28152832.

It is an arithmetic number, because the mean of its divisors is an integer number (253375299).

Almost surely, 2^1238723662 is an apocalyptic number.

1238723662 is a deficient number, since it is larger than the sum of its proper divisors (788278730).

1238723662 is a wasteful number, since it uses less digits than its factorization.

1238723662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56305634.

The product of its digits is 145152, while the sum is 40.

The square root of 1238723662 is about 35195.5062756597. The cubic root of 1238723662 is about 1073.9683376652.

The spelling of 1238723662 in words is "one billion, two hundred thirty-eight million, seven hundred twenty-three thousand, six hundred sixty-two".