40172298 has 16 divisors (see below), whose sum is σ = 80605056. Its totient is φ = 13347360.

The previous prime is 40172287. The next prime is 40172303. The reversal of 40172298 is 89227104.

It is a happy number.

40172298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40172298² = 3227627053201608, which contains 22 as substring.

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, 8818 + ... + 12573.

It is an arithmetic number, because the mean of its divisors is an integer number (5037816).

Almost surely, 2^40172298 is an apocalyptic number.

40172298 is an abundant number, since it is smaller than the sum of its proper divisors (40432758).

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

40172298 is a wasteful number, since it uses less digits than its factorization.

40172298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21709.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 40172298 is about 6338.1620364266. The cubic root of 40172298 is about 342.4855283636.

It can be divided in two parts, 40172 and 298, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 40172298 in words is "forty million, one hundred seventy-two thousand, two hundred ninety-eight".