19542950 has 24 divisors (see below), whose sum is σ = 41543472. Its totient is φ = 6700320.

The previous prime is 19542947. The next prime is 19543021. The reversal of 19542950 is 5924591.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 19542950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27569 + ... + 28268.

It is an arithmetic number, because the mean of its divisors is an integer number (1730978).

Almost surely, 2^19542950 is an apocalyptic number.

19542950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19542950 is an abundant number, since it is smaller than the sum of its proper divisors (22000522).

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

19542950 is a wasteful number, since it uses less digits than its factorization.

19542950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55856 (or 55851 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 19542950 is about 4420.7408881318. The cubic root of 19542950 is about 269.3581002097.

The spelling of 19542950 in words is "nineteen million, five hundred forty-two thousand, nine hundred fifty".