911890642 has 32 divisors (see below), whose sum is σ = 1562198400. Its totient is φ = 395482368.

The previous prime is 911890633. The next prime is 911890649. The reversal of 911890642 is 246098119.

911890642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 911890595 and 911890604.

It is not an unprimeable number, because it can be changed into a prime (911890649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369609 + ... + 372067.

It is an arithmetic number, because the mean of its divisors is an integer number (48818700).

Almost surely, 2^911890642 is an apocalyptic number.

911890642 is a deficient number, since it is larger than the sum of its proper divisors (650307758).

911890642 is a wasteful number, since it uses less digits than its factorization.

911890642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 911890642 is about 30197.5270841836. The cubic root of 911890642 is about 969.7227542224.

The spelling of 911890642 in words is "nine hundred eleven million, eight hundred ninety thousand, six hundred forty-two".