40212398 has 8 divisors (see below), whose sum is σ = 63493320. Its totient is φ = 19047960.

The previous prime is 40212397. The next prime is 40212407. The reversal of 40212398 is 89321204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40212398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529073 + ... + 529148.

It is an arithmetic number, because the mean of its divisors is an integer number (7936665).

Almost surely, 2^40212398 is an apocalyptic number.

40212398 is a deficient number, since it is larger than the sum of its proper divisors (23280922).

40212398 is a wasteful number, since it uses less digits than its factorization.

40212398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058242.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40212398 is about 6341.3246250291. The cubic root of 40212398 is about 342.5994468535.

The spelling of 40212398 in words is "forty million, two hundred twelve thousand, three hundred ninety-eight".