1011923340 has 24 divisors (see below), whose sum is σ = 2833385520. Its totient is φ = 269846208.

The previous prime is 1011923333. The next prime is 1011923347. The reversal of 1011923340 is 433291101.

It is an interprime number because it is at equal distance from previous prime (1011923333) and next prime (1011923347).

It is a self number, because there is not a number n which added to its sum of digits gives 1011923340.

It is not an unprimeable number, because it can be changed into a prime (1011923347) 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, 8432635 + ... + 8432754.

It is an arithmetic number, because the mean of its divisors is an integer number (118057730).

Almost surely, 2^1011923340 is an apocalyptic number.

1011923340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011923340 is an abundant number, since it is smaller than the sum of its proper divisors (1821462180).

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

1011923340 is a wasteful number, since it uses less digits than its factorization.

1011923340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16865401 (or 16865399 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1011923340 is about 31810.7425251282. The cubic root of 1011923340 is about 1003.9587542513.

The spelling of 1011923340 in words is "one billion, eleven million, nine hundred twenty-three thousand, three hundred forty".