19740654 has 12 divisors (see below), whose sum is σ = 42771456. Its totient is φ = 6580212.

The previous prime is 19740653. The next prime is 19740661. The reversal of 19740654 is 45604791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19740653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 548334 + ... + 548369.

It is an arithmetic number, because the mean of its divisors is an integer number (3564288).

Almost surely, 2^19740654 is an apocalyptic number.

19740654 is an abundant number, since it is smaller than the sum of its proper divisors (23030802).

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

19740654 is a wasteful number, since it uses less digits than its factorization.

19740654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096711 (or 1096708 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 19740654 is about 4443.0455770789. The cubic root of 19740654 is about 270.2633644237.

The spelling of 19740654 in words is "nineteen million, seven hundred forty thousand, six hundred fifty-four".