1454769440 has 48 divisors (see below), whose sum is σ = 3501760248. Its totient is φ = 570925056.

The previous prime is 1454769439. The next prime is 1454769443. The reversal of 1454769440 is 449674541.

It can be written as a sum of positive squares in 4 ways, for example, as 1192459024 + 262310416 = 34532^2 + 16196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1454769391 and 1454769400.

It is not an unprimeable number, because it can be changed into a prime (1454769443) 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, 77297 + ... + 94256.

Almost surely, 2^1454769440 is an apocalyptic number.

1454769440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1454769440 is an abundant number, since it is smaller than the sum of its proper divisors (2046990808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1454769440 is a wasteful number, since it uses less digits than its factorization.

1454769440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171621 (or 171613 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 1454769440 is about 38141.4399308678. The cubic root of 1454769440 is about 1133.0908254673.

The spelling of 1454769440 in words is "one billion, four hundred fifty-four million, seven hundred sixty-nine thousand, four hundred forty".