152471440 has 40 divisors (see below), whose sum is σ = 386725248. Its totient is φ = 55443840.

The previous prime is 152471437. The next prime is 152471483. The reversal of 152471440 is 44174251.

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

It is a junction number, because it is equal to n+sod(n) for n = 152471399 and 152471408.

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, 85752 + ... + 87511.

Almost surely, 2^152471440 is an apocalyptic number.

152471440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152471440 is an abundant number, since it is smaller than the sum of its proper divisors (234253808).

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

152471440 is a wasteful number, since it uses less digits than its factorization.

152471440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173287 (or 173281 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 152471440 is about 12347.9326204835. The cubic root of 152471440 is about 534.2315108511.

The spelling of 152471440 in words is "one hundred fifty-two million, four hundred seventy-one thousand, four hundred forty".