19508970 has 32 divisors (see below), whose sum is σ = 50424192. Its totient is φ = 4802112.

The previous prime is 19508969. The next prime is 19509011. The reversal of 19508970 is 7980591.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24622 + ... + 25401.

It is an arithmetic number, because the mean of its divisors is an integer number (1575756).

Almost surely, 2^19508970 is an apocalyptic number.

19508970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19508970 is an abundant number, since it is smaller than the sum of its proper divisors (30915222).

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

19508970 is a wasteful number, since it uses less digits than its factorization.

19508970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50046.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 19508970 is about 4416.8959688904. The cubic root of 19508970 is about 269.2018955744.

The spelling of 19508970 in words is "nineteen million, five hundred eight thousand, nine hundred seventy".