172814740 has 24 divisors (see below), whose sum is σ = 414755712. Its totient is φ = 59250720.

The previous prime is 172814711. The next prime is 172814777. The reversal of 172814740 is 47418271.

It is a super-2 number, since 2×172814740² = 59729868722535200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172814696 and 172814705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617056 + ... + 617335.

It is an arithmetic number, because the mean of its divisors is an integer number (17281488).

Almost surely, 2^172814740 is an apocalyptic number.

172814740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172814740 is an abundant number, since it is smaller than the sum of its proper divisors (241940972).

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

172814740 is a wasteful number, since it uses less digits than its factorization.

172814740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234407 (or 1234405 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 172814740 is about 13145.9020230641. The cubic root of 172814740 is about 557.0064968563.

The spelling of 172814740 in words is "one hundred seventy-two million, eight hundred fourteen thousand, seven hundred forty".