1453881994 has 8 divisors (see below), whose sum is σ = 2180984868. Its totient is φ = 726887040.

The previous prime is 1453881941. The next prime is 1453882009. The reversal of 1453881994 is 4991883541.

It can be written as a sum of positive squares in 2 ways, for example, as 1429822969 + 24059025 = 37813^2 + 4905^2 .

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

It is a super-2 number, since 2×1453881994² = 4227545704954832072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38064 + ... + 66004.

Almost surely, 2^1453881994 is an apocalyptic number.

1453881994 is a deficient number, since it is larger than the sum of its proper divisors (727102874).

1453881994 is a wasteful number, since it uses less digits than its factorization.

1453881994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53960.

The product of its digits is 1244160, while the sum is 52.

The square root of 1453881994 is about 38129.8045366089. The cubic root of 1453881994 is about 1132.8603739529.

The spelling of 1453881994 in words is "one billion, four hundred fifty-three million, eight hundred eighty-one thousand, nine hundred ninety-four".