19480090 has 64 divisors (see below), whose sum is σ = 42467328. Its totient is φ = 6292800.

The previous prime is 19480067. The next prime is 19480129. The reversal of 19480090 is 9008491.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101895 + ... + 102085.

It is an arithmetic number, because the mean of its divisors is an integer number (663552).

Almost surely, 2^19480090 is an apocalyptic number.

19480090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19480090 is an abundant number, since it is smaller than the sum of its proper divisors (22987238).

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

19480090 is a wasteful number, since it uses less digits than its factorization.

19480090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 19480090 is about 4413.6254938542. The cubic root of 19480090 is about 269.0689927740.

The spelling of 19480090 in words is "nineteen million, four hundred eighty thousand, ninety".