1456487918 has 4 divisors (see below), whose sum is σ = 2184731880. Its totient is φ = 728243958.

The previous prime is 1456487917. The next prime is 1456487933. The reversal of 1456487918 is 8197846541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8197846541 = 13177 ⋅622133.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1456487918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456487917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364121978 + ... + 364121981.

It is an arithmetic number, because the mean of its divisors is an integer number (546182970).

Almost surely, 2^1456487918 is an apocalyptic number.

1456487918 is a deficient number, since it is larger than the sum of its proper divisors (728243962).

1456487918 is an equidigital number, since it uses as much as digits as its factorization.

1456487918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728243961.

The product of its digits is 1935360, while the sum is 53.

The square root of 1456487918 is about 38163.9609841536. The cubic root of 1456487918 is about 1133.5368126192.

The spelling of 1456487918 in words is "one billion, four hundred fifty-six million, four hundred eighty-seven thousand, nine hundred eighteen".