40623398 has 4 divisors (see below), whose sum is σ = 60935100. Its totient is φ = 20311698.

The previous prime is 40623397. The next prime is 40623419. The reversal of 40623398 is 89332604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40623391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155848 + ... + 10155851.

It is an arithmetic number, because the mean of its divisors is an integer number (15233775).

Almost surely, 2^40623398 is an apocalyptic number.

40623398 is a deficient number, since it is larger than the sum of its proper divisors (20311702).

40623398 is a wasteful number, since it uses less digits than its factorization.

40623398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20311701.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 40623398 is about 6373.6487195326. The cubic root of 40623398 is about 343.7626980213.

The spelling of 40623398 in words is "forty million, six hundred twenty-three thousand, three hundred ninety-eight".