921348120 has 128 divisors (see below), whose sum is σ = 3446115840. Its totient is φ = 191447040.

The previous prime is 921348089. The next prime is 921348121. The reversal of 921348120 is 21843129.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921348121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40617 + ... + 59096.

It is an arithmetic number, because the mean of its divisors is an integer number (26922780).

Almost surely, 2^921348120 is an apocalyptic number.

It is an amenable number.

921348120 is an abundant number, since it is smaller than the sum of its proper divisors (2524767720).

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

921348120 is a wasteful number, since it uses less digits than its factorization.

921348120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99745 (or 99741 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 921348120 is about 30353.7167411176. The cubic root of 921348120 is about 973.0636546721.

The spelling of 921348120 in words is "nine hundred twenty-one million, three hundred forty-eight thousand, one hundred twenty".