800009742 has 16 divisors (see below), whose sum is σ = 1828593792. Its totient is φ = 228574200.

The previous prime is 800009741. The next prime is 800009773. The reversal of 800009742 is 247900008.

It is a super-3 number, since 3×800009742³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800009741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9523884 + ... + 9523967.

It is an arithmetic number, because the mean of its divisors is an integer number (114287112).

Almost surely, 2^800009742 is an apocalyptic number.

800009742 is an abundant number, since it is smaller than the sum of its proper divisors (1028584050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800009742 is a wasteful number, since it uses less digits than its factorization.

800009742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19047863.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 800009742 is about 28284.4434627942. The cubic root of 800009742 is about 928.3215349038.

The spelling of 800009742 in words is "eight hundred million, nine thousand, seven hundred forty-two".