1633988742 has 8 divisors (see below), whose sum is σ = 3267977496. Its totient is φ = 544662912.

The previous prime is 1633988737. The next prime is 1633988743. The reversal of 1633988742 is 2478893361.

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

1633988742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1633988743) 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, 136165723 + ... + 136165734.

It is an arithmetic number, because the mean of its divisors is an integer number (408497187).

Almost surely, 2^1633988742 is an apocalyptic number.

1633988742 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.

1633988742 is a wasteful number, since it uses less digits than its factorization.

1633988742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272331462.

The product of its digits is 1741824, while the sum is 51.

The square root of 1633988742 is about 40422.6266093632. The cubic root of 1633988742 is about 1177.8311068893.

The spelling of 1633988742 in words is "one billion, six hundred thirty-three million, nine hundred eighty-eight thousand, seven hundred forty-two".