19470040 has 32 divisors (see below), whose sum is σ = 43933680. Its totient is φ = 7765632.

The previous prime is 19470037. The next prime is 19470043. The reversal of 19470040 is 4007491.

It is an interprime number because it is at equal distance from previous prime (19470037) and next prime (19470043).

It is a junction number, because it is equal to n+sod(n) for n = 19469987 and 19470014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19470043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25342 + ... + 26098.

Almost surely, 2^19470040 is an apocalyptic number.

19470040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19470040 is an abundant number, since it is smaller than the sum of its proper divisors (24463640).

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

19470040 is a wasteful number, since it uses less digits than its factorization.

19470040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 19470040 is about 4412.4868271758. The cubic root of 19470040 is about 269.0227128963.

The spelling of 19470040 in words is "nineteen million, four hundred seventy thousand, forty".