19145450 has 24 divisors (see below), whose sum is σ = 36372672. Its totient is φ = 7494320.

The previous prime is 19145429. The next prime is 19145473. The reversal of 19145450 is 5454191.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1724 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (1515528).

Almost surely, 2^19145450 is an apocalyptic number.

19145450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19145450 is a deficient number, since it is larger than the sum of its proper divisors (17227222).

19145450 is a wasteful number, since it uses less digits than its factorization.

19145450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8206 (or 8201 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 19145450 is about 4375.5513938246. The cubic root of 19145450 is about 267.5193452688.

The spelling of 19145450 in words is "nineteen million, one hundred forty-five thousand, four hundred fifty".