1455670399 has 4 divisors (see below), whose sum is σ = 1505865960. Its totient is φ = 1405474840.

The previous prime is 1455670393. The next prime is 1455670429. The reversal of 1455670399 is 9930765541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9930765541 = 7649 ⋅1298309.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1455670399 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 (1455670393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25097737 + ... + 25097794.

It is an arithmetic number, because the mean of its divisors is an integer number (376466490).

Almost surely, 2^1455670399 is an apocalyptic number.

1455670399 is a deficient number, since it is larger than the sum of its proper divisors (50195561).

1455670399 is an equidigital number, since it uses as much as digits as its factorization.

1455670399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50195560.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The square root of 1455670399 is about 38153.2488655947. The cubic root of 1455670399 is about 1133.3246901782.

The spelling of 1455670399 in words is "one billion, four hundred fifty-five million, six hundred seventy thousand, three hundred ninety-nine".