19070120 has 16 divisors (see below), whose sum is σ = 42907860. Its totient is φ = 7628032.

The previous prime is 19070101. The next prime is 19070131. The reversal of 19070120 is 2107091.

It can be written as a sum of positive squares in 2 ways, for example, as 18852964 + 217156 = 4342^2 + 466^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 19070092 and 19070101.

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, 238337 + ... + 238416.

Almost surely, 2^19070120 is an apocalyptic number.

19070120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19070120 is an abundant number, since it is smaller than the sum of its proper divisors (23837740).

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

19070120 is a wasteful number, since it uses less digits than its factorization.

19070120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476764 (or 476760 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 19070120 is about 4366.9348518154. The cubic root of 19070120 is about 267.1680220973.

The spelling of 19070120 in words is "nineteen million, seventy thousand, one hundred twenty".