19933340 has 24 divisors (see below), whose sum is σ = 47840352. Its totient is φ = 6834240.

The previous prime is 19933283. The next prime is 19933357. The reversal of 19933340 is 4333991.

19933340 = 1575² + 1576² + ... + 1582².

It is a junction number, because it is equal to n+sod(n) for n = 19933297 and 19933306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71051 + ... + 71330.

It is an arithmetic number, because the mean of its divisors is an integer number (1993348).

Almost surely, 2^19933340 is an apocalyptic number.

19933340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19933340 is an abundant number, since it is smaller than the sum of its proper divisors (27907012).

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

19933340 is a wasteful number, since it uses less digits than its factorization.

19933340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142397 (or 142395 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 19933340 is about 4464.6769200022. The cubic root of 19933340 is about 271.1398541942.

The spelling of 19933340 in words is "nineteen million, nine hundred thirty-three thousand, three hundred forty".