152775440 has 40 divisors (see below), whose sum is σ = 366667008. Its totient is φ = 59137920.

The previous prime is 152775439. The next prime is 152775473. The reversal of 152775440 is 44577251.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 152775440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28322 + ... + 33281.

Almost surely, 2^152775440 is an apocalyptic number.

152775440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152775440 is an abundant number, since it is smaller than the sum of its proper divisors (213891568).

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

152775440 is a wasteful number, since it uses less digits than its factorization.

152775440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61647 (or 61641 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 152775440 is about 12360.2362436970. The cubic root of 152775440 is about 534.5863282572.

It can be divided in two parts, 1527 and 75440, that added together give a palindrome (76967).

The spelling of 152775440 in words is "one hundred fifty-two million, seven hundred seventy-five thousand, four hundred forty".