742837881 has 8 divisors (see below), whose sum is σ = 990905344. Its totient is φ = 494997840.

The previous prime is 742837819. The next prime is 742837951. The reversal of 742837881 is 188738247.

It is a happy number.

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

It is not a de Polignac number, because 742837881 - 2¹⁸ = 742575737 is a prime.

It is a super-2 number, since 2×742837881² = 1103616234897140322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 742837881.

It is not an unprimeable number, because it can be changed into a prime (742837181) 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, 49081 + ... + 62406.

It is an arithmetic number, because the mean of its divisors is an integer number (123863168).

Almost surely, 2^742837881 is an apocalyptic number.

It is an amenable number.

742837881 is a deficient number, since it is larger than the sum of its proper divisors (248067463).

742837881 is a wasteful number, since it uses less digits than its factorization.

742837881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113711.

The product of its digits is 602112, while the sum is 48.

The square root of 742837881 is about 27255.0523940058. The cubic root of 742837881 is about 905.6589448179.

The spelling of 742837881 in words is "seven hundred forty-two million, eight hundred thirty-seven thousand, eight hundred eighty-one".