40383398 has 32 divisors (see below), whose sum is σ = 73664640. Its totient is φ = 16364160.

The previous prime is 40383397. The next prime is 40383443. The reversal of 40383398 is 89338304.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40383397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4265 + ... + 9947.

It is an arithmetic number, because the mean of its divisors is an integer number (2302020).

Almost surely, 2^40383398 is an apocalyptic number.

40383398 is a deficient number, since it is larger than the sum of its proper divisors (33281242).

40383398 is a wasteful number, since it uses less digits than its factorization.

40383398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 40383398 is about 6354.7933089913. The cubic root of 40383398 is about 343.0843856782.

The spelling of 40383398 in words is "forty million, three hundred eighty-three thousand, three hundred ninety-eight".