40606251 has 24 divisors (see below), whose sum is σ = 66690000. Its totient is φ = 21837312.

The previous prime is 40606229. The next prime is 40606273. The reversal of 40606251 is 15260604.

It is an interprime number because it is at equal distance from previous prime (40606229) and next prime (40606273).

It is not a de Polignac number, because 40606251 - 2⁷ = 40606123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40606151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5626 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (2778750).

Almost surely, 2^40606251 is an apocalyptic number.

40606251 is a deficient number, since it is larger than the sum of its proper divisors (26083749).

40606251 is a wasteful number, since it uses less digits than its factorization.

40606251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16283 (or 16276 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 40606251 is about 6372.3034296869. The cubic root of 40606251 is about 343.7143241874.

Adding to 40606251 its reverse (15260604), we get a palindrome (55866855).

The spelling of 40606251 in words is "forty million, six hundred six thousand, two hundred fifty-one".