19241940 has 24 divisors (see below), whose sum is σ = 53877600. Its totient is φ = 5131168.

The previous prime is 19241933. The next prime is 19241947. The reversal of 19241940 is 4914291.

19241940 = T₁₃₀ + T₁₃₁ + ... + T₄₈₉.

It is an interprime number because it is at equal distance from previous prime (19241933) and next prime (19241947).

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 = 19241898 and 19241907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19241947) 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, 160290 + ... + 160409.

It is an arithmetic number, because the mean of its divisors is an integer number (2244900).

Almost surely, 2^19241940 is an apocalyptic number.

19241940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19241940 is an abundant number, since it is smaller than the sum of its proper divisors (34635660).

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

19241940 is a wasteful number, since it uses less digits than its factorization.

19241940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320711 (or 320709 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 19241940 is about 4386.5635752830. The cubic root of 19241940 is about 267.9680105874.

The spelling of 19241940 in words is "nineteen million, two hundred forty-one thousand, nine hundred forty".