40761225 has 30 divisors (see below), whose sum is σ = 75507630. Its totient is φ = 21738240.

The previous prime is 40761209. The next prime is 40761233. The reversal of 40761225 is 52216704.

40761225 is a `hidden beast` number, since 40 + 7 + 612 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 8714304 + 32046921 = 2952^2 + 5661^2 .

It is not a de Polignac number, because 40761225 - 2⁴ = 40761209 is a prime.

It is a super-2 number, since 2×40761225² = 3322954927001250, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 8040 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (2516921).

Almost surely, 2^40761225 is an apocalyptic number.

40761225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40761225 is a deficient number, since it is larger than the sum of its proper divisors (34746405).

40761225 is a wasteful number, since it uses less digits than its factorization.

40761225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20151 (or 20137 counting only the distinct ones).

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

The square root of 40761225 is about 6384.4518167185. The cubic root of 40761225 is about 344.1510316839.

Adding to 40761225 its reverse (52216704), we get a palindrome (92977929).

The spelling of 40761225 in words is "forty million, seven hundred sixty-one thousand, two hundred twenty-five".