40625172 has 192 divisors, whose sum is σ = 133056000. Its totient is φ = 10450944.

The previous prime is 40625171. The next prime is 40625177. The reversal of 40625172 is 27152604.

40625172 is a `hidden beast` number, since 406 + 251 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40625171) 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, 372654 + ... + 372762.

It is an arithmetic number, because the mean of its divisors is an integer number (693000).

Almost surely, 2^40625172 is an apocalyptic number.

40625172 is a gapful number since it is divisible by the number (42) 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 40625172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66528000).

40625172 is an abundant number, since it is smaller than the sum of its proper divisors (92430828).

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

40625172 is a wasteful number, since it uses less digits than its factorization.

40625172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40625172 is about 6373.7878847668. The cubic root of 40625172 is about 343.7677019204.

Adding to 40625172 its reverse (27152604), we get a palindrome (67777776).

The spelling of 40625172 in words is "forty million, six hundred twenty-five thousand, one hundred seventy-two".