23192940 has 24 divisors (see below), whose sum is σ = 64940400. Its totient is φ = 6184768.

The previous prime is 23192881. The next prime is 23192941. The reversal of 23192940 is 4929132.

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

It is a junction number, because it is equal to n+sod(n) for n = 23192898 and 23192907.

It is not an unprimeable number, because it can be changed into a prime (23192941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193215 + ... + 193334.

It is an arithmetic number, because the mean of its divisors is an integer number (2705850).

Almost surely, 2^23192940 is an apocalyptic number.

23192940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23192940 is an abundant number, since it is smaller than the sum of its proper divisors (41747460).

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

23192940 is a wasteful number, since it uses less digits than its factorization.

23192940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386561 (or 386559 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 23192940 is about 4815.9048993933. The cubic root of 23192940 is about 285.1796958479.

The spelling of 23192940 in words is "twenty-three million, one hundred ninety-two thousand, nine hundred forty".