19412740 has 24 divisors (see below), whose sum is σ = 41065920. Its totient is φ = 7708128.

The previous prime is 19412669. The next prime is 19412741. The reversal of 19412740 is 4721491.

It is a super-3 number, since 3×19412740³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19412699 and 19412708.

It is not an unprimeable number, because it can be changed into a prime (19412741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712 + ... + 6271.

It is an arithmetic number, because the mean of its divisors is an integer number (1711080).

Almost surely, 2^19412740 is an apocalyptic number.

19412740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19412740 is an abundant number, since it is smaller than the sum of its proper divisors (21653180).

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

19412740 is a wasteful number, since it uses less digits than its factorization.

19412740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131 (or 7129 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 19412740 is about 4405.9891057514. The cubic root of 19412740 is about 268.7585438063.

The spelling of 19412740 in words is "nineteen million, four hundred twelve thousand, seven hundred forty".