19457045 has 16 divisors (see below), whose sum is σ = 24816000. Its totient is φ = 14603328.

The previous prime is 19457041. The next prime is 19457047. The reversal of 19457045 is 54075491.

It is a cyclic number.

It is not a de Polignac number, because 19457045 - 2² = 19457041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19456996 and 19457014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19457041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9416 + ... + 11294.

It is an arithmetic number, because the mean of its divisors is an integer number (1551000).

Almost surely, 2^19457045 is an apocalyptic number.

It is an amenable number.

19457045 is a deficient number, since it is larger than the sum of its proper divisors (5358955).

19457045 is a wasteful number, since it uses less digits than its factorization.

19457045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 19457045 is about 4411.0140557473. The cubic root of 19457045 is about 268.9628477871.

The spelling of 19457045 in words is "nineteen million, four hundred fifty-seven thousand, forty-five".