172493850240 has 512 divisors, whose sum is σ = 628223385600. Its totient is φ = 44709138432.

The previous prime is 172493850223. The next prime is 172493850247. The reversal of 172493850240 is 42058394271.

172493850240 is a `hidden beast` number, since 1 + 7 + 24 + 9 + 385 + 0 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (172493850247) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132381429 + ... + 132382731.

It is an arithmetic number, because the mean of its divisors is an integer number (1226998800).

Almost surely, 2^172493850240 is an apocalyptic number.

172493850240 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 172493850240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314111692800).

172493850240 is an abundant number, since it is smaller than the sum of its proper divisors (455729535360).

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

172493850240 is a wasteful number, since it uses less digits than its factorization.

172493850240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 172493850240 in words is "one hundred seventy-two billion, four hundred ninety-three million, eight hundred fifty thousand, two hundred forty".