919787242 has 16 divisors (see below), whose sum is σ = 1523243232. Its totient is φ = 413047120.

The previous prime is 919787237. The next prime is 919787303. The reversal of 919787242 is 242787919.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250033 + ... + 253684.

It is an arithmetic number, because the mean of its divisors is an integer number (95202702).

Almost surely, 2^919787242 is an apocalyptic number.

919787242 is a deficient number, since it is larger than the sum of its proper divisors (603455990).

919787242 is a wasteful number, since it uses less digits than its factorization.

919787242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503813.

The product of its digits is 508032, while the sum is 49.

The square root of 919787242 is about 30327.9943616455. The cubic root of 919787242 is about 972.5138472309.

It can be divided in two parts, 919787 and 242, that added together give a palindrome (920029).

The spelling of 919787242 in words is "nine hundred nineteen million, seven hundred eighty-seven thousand, two hundred forty-two".