40172092 has 12 divisors (see below), whose sum is σ = 71627976. Its totient is φ = 19706960.

The previous prime is 40172089. The next prime is 40172107. The reversal of 40172092 is 29027104.

It is a super-2 number, since 2×40172092² = 3227593951312928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94534 + ... + 94957.

It is an arithmetic number, because the mean of its divisors is an integer number (5968998).

Almost surely, 2^40172092 is an apocalyptic number.

It is an amenable number.

40172092 is a deficient number, since it is larger than the sum of its proper divisors (31455884).

40172092 is a wasteful number, since it uses less digits than its factorization.

40172092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189548 (or 189546 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 40172092 is about 6338.1457856379. The cubic root of 40172092 is about 342.4849429508.

Adding to 40172092 its reverse (29027104), we get a palindrome (69199196).

The spelling of 40172092 in words is "forty million, one hundred seventy-two thousand, ninety-two".