30023950 has 48 divisors (see below), whose sum is σ = 61781760. Its totient is φ = 10764000.

The previous prime is 30023923. The next prime is 30023953. The reversal of 30023950 is 5932003.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43105 + ... + 43795.

It is an arithmetic number, because the mean of its divisors is an integer number (1287120).

Almost surely, 2^30023950 is an apocalyptic number.

30023950 is an abundant number, since it is smaller than the sum of its proper divisors (31757810).

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

30023950 is a wasteful number, since it uses less digits than its factorization.

30023950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 30023950 is about 5479.4114647469. The cubic root of 30023950 is about 310.8059155107.

Adding to 30023950 its reverse (5932003), we get a palindrome (35955953).

The spelling of 30023950 in words is "thirty million, twenty-three thousand, nine hundred fifty".