1464040144 has 20 divisors (see below), whose sum is σ = 3241803424. Its totient is φ = 627445728.

The previous prime is 1464040141. The next prime is 1464040159. The reversal of 1464040144 is 4410404641.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1464040141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6535782 + ... + 6536005.

Almost surely, 2^1464040144 is an apocalyptic number.

1464040144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1464040144 is an abundant number, since it is smaller than the sum of its proper divisors (1777763280).

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

1464040144 is a wasteful number, since it uses less digits than its factorization.

1464040144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13071802 (or 13071796 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 1464040144 is about 38262.7775259455. Note that the first 3 decimals coincide. The cubic root of 1464040144 is about 1135.4926526718.

Adding to 1464040144 its reverse (4410404641), we get a palindrome (5874444785).

The spelling of 1464040144 in words is "one billion, four hundred sixty-four million, forty thousand, one hundred forty-four".