1464554640 has 160 divisors (see below), whose sum is σ = 4645952640. Its totient is φ = 381534208.

The previous prime is 1464554617. The next prime is 1464554653. The reversal of 1464554640 is 464554641.

1464554640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4148704 + ... + 4149056.

It is an arithmetic number, because the mean of its divisors is an integer number (29037204).

Almost surely, 2^1464554640 is an apocalyptic number.

1464554640 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 1464554640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2322976320).

1464554640 is an abundant number, since it is smaller than the sum of its proper divisors (3181398000).

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

1464554640 is a wasteful number, since it uses less digits than its factorization.

1464554640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The square root of 1464554640 is about 38269.5001273860. The cubic root of 1464554640 is about 1135.6256494818.

Subtracting from 1464554640 its reverse (464554641), we obtain a palindrome (999999999).

The spelling of 1464554640 in words is "one billion, four hundred sixty-four million, five hundred fifty-four thousand, six hundred forty".