921940914 has 64 divisors (see below), whose sum is σ = 2062396800. Its totient is φ = 273466368.

The previous prime is 921940913. The next prime is 921940967. The reversal of 921940914 is 419049129.

It is not an unprimeable number, because it can be changed into a prime (921940913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118554 + ... + 126090.

It is an arithmetic number, because the mean of its divisors is an integer number (32224950).

Almost surely, 2^921940914 is an apocalyptic number.

921940914 is an abundant number, since it is smaller than the sum of its proper divisors (1140455886).

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

921940914 is a wasteful number, since it uses less digits than its factorization.

921940914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 921940914 is about 30363.4799389003. The cubic root of 921940914 is about 973.2722991638.

The spelling of 921940914 in words is "nine hundred twenty-one million, nine hundred forty thousand, nine hundred fourteen".