1456477440 has 432 divisors, whose sum is σ = 5383699776. Its totient is φ = 332595200.

The previous prime is 1456477439. The next prime is 1456477441. The reversal of 1456477440 is 447746541.

It is an interprime number because it is at equal distance from previous prime (1456477439) and next prime (1456477441).

It is a junction number, because it is equal to n+sod(n) for n = 1456477392 and 1456477401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456477441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35523820 + ... + 35523860.

It is an arithmetic number, because the mean of its divisors is an integer number (12462268).

Almost surely, 2^1456477440 is an apocalyptic number.

1456477440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1456477440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2691849888).

1456477440 is an abundant number, since it is smaller than the sum of its proper divisors (3927222336).

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

1456477440 is a wasteful number, since it uses less digits than its factorization.

1456477440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 42.

The square root of 1456477440 is about 38163.8237077995. The cubic root of 1456477440 is about 1133.5340943847.

The spelling of 1456477440 in words is "one billion, four hundred fifty-six million, four hundred seventy-seven thousand, four hundred forty".