140464469 has 16 divisors (see below), whose sum is σ = 148925952. Its totient is φ = 132320448.

The previous prime is 140464463. The next prime is 140464481. The reversal of 140464469 is 964464041.

140464469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140464469 - 2⁴ = 140464453 is a prime.

It is a super-2 number, since 2×140464469² = 39460534102903922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140464463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162332 + ... + 163194.

It is an arithmetic number, because the mean of its divisors is an integer number (9307872).

Almost surely, 2^140464469 is an apocalyptic number.

It is an amenable number.

140464469 is a deficient number, since it is larger than the sum of its proper divisors (8461483).

140464469 is an equidigital number, since it uses as much as digits as its factorization.

140464469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 140464469 is about 11851.7707115857. The cubic root of 140464469 is about 519.8230031238.

The spelling of 140464469 in words is "one hundred forty million, four hundred sixty-four thousand, four hundred sixty-nine".