23435940 has 48 divisors (see below), whose sum is σ = 71588160. Its totient is φ = 5681280.

The previous prime is 23435869. The next prime is 23435941. The reversal of 23435940 is 4953432.

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 = 23435898 and 23435907.

It is not an unprimeable number, because it can be changed into a prime (23435941) 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, 17095 + ... + 18414.

It is an arithmetic number, because the mean of its divisors is an integer number (1491420).

Almost surely, 2^23435940 is an apocalyptic number.

23435940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23435940 is an abundant number, since it is smaller than the sum of its proper divisors (48152220).

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

23435940 is a wasteful number, since it uses less digits than its factorization.

23435940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35532 (or 35530 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 23435940 is about 4841.0680639710. The cubic root of 23435940 is about 286.1722111491.

The spelling of 23435940 in words is "twenty-three million, four hundred thirty-five thousand, nine hundred forty".