1453388649 has 8 divisors (see below), whose sum is σ = 1938039552. Its totient is φ = 968831760.

The previous prime is 1453388627. The next prime is 1453388683. The reversal of 1453388649 is 9468833541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1453388649 - 2⁵ = 1453388617 is a prime.

It is a super-2 number, since 2×1453388649² = 4224677130084090402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1453388149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29919 + ... + 61659.

It is an arithmetic number, because the mean of its divisors is an integer number (242254944).

Almost surely, 2^1453388649 is an apocalyptic number.

It is an amenable number.

1453388649 is a deficient number, since it is larger than the sum of its proper divisors (484650903).

1453388649 is a wasteful number, since it uses less digits than its factorization.

1453388649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47007.

The product of its digits is 2488320, while the sum is 51.

The square root of 1453388649 is about 38123.3347046137. The cubic root of 1453388649 is about 1132.7322218215.

The spelling of 1453388649 in words is "one billion, four hundred fifty-three million, three hundred eighty-eight thousand, six hundred forty-nine".