19495480 has 16 divisors (see below), whose sum is σ = 43864920. Its totient is φ = 7798176.

The previous prime is 19495471. The next prime is 19495493. The reversal of 19495480 is 8459491.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 487387 = 19495480 / (1 + 9 + 4 + 9 + 5 + 4 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243654 + ... + 243733.

Almost surely, 2^19495480 is an apocalyptic number.

19495480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19495480 is an abundant number, since it is smaller than the sum of its proper divisors (24369440).

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

19495480 is a wasteful number, since it uses less digits than its factorization.

19495480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487398 (or 487394 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 19495480 is about 4415.3686142835. The cubic root of 19495480 is about 269.1398323127.

The spelling of 19495480 in words is "nineteen million, four hundred ninety-five thousand, four hundred eighty".