19430145 has 64 divisors (see below), whose sum is σ = 40896000. Its totient is φ = 8563968.

The previous prime is 19430123. The next prime is 19430153. The reversal of 19430145 is 54103491.

It is not a de Polignac number, because 19430145 - 2⁷ = 19430017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27051 + ... + 27759.

It is an arithmetic number, because the mean of its divisors is an integer number (639000).

Almost surely, 2^19430145 is an apocalyptic number.

19430145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19430145 is an abundant number, since it is smaller than the sum of its proper divisors (21465855).

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

19430145 is a wasteful number, since it uses less digits than its factorization.

19430145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 19430145 is about 4407.9638156410. The cubic root of 19430145 is about 268.8388406486.

The spelling of 19430145 in words is "nineteen million, four hundred thirty thousand, one hundred forty-five".