1493326645 has 16 divisors (see below), whose sum is σ = 1802227968. Its totient is φ = 1187859520.

The previous prime is 1493326643. The next prime is 1493326649. The reversal of 1493326645 is 5466233941.

It is not a de Polignac number, because 1493326645 - 2¹ = 1493326643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493326643) 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, 746787 + ... + 748783.

It is an arithmetic number, because the mean of its divisors is an integer number (112639248).

Almost surely, 2^1493326645 is an apocalyptic number.

It is an amenable number.

1493326645 is a deficient number, since it is larger than the sum of its proper divisors (308901323).

1493326645 is a wasteful number, since it uses less digits than its factorization.

1493326645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780.

The product of its digits is 466560, while the sum is 43.

The square root of 1493326645 is about 38643.5847845409. The cubic root of 1493326645 is about 1143.0141445281.

The spelling of 1493326645 in words is "one billion, four hundred ninety-three million, three hundred twenty-six thousand, six hundred forty-five".