74199438 has 24 divisors (see below), whose sum is σ = 161670600. Its totient is φ = 24593904.

The previous prime is 74199431. The next prime is 74199443. The reversal of 74199438 is 83499147.

It is a junction number, because it is equal to n+sod(n) for n = 74199393 and 74199402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74199431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8293 + ... + 14736.

It is an arithmetic number, because the mean of its divisors is an integer number (6736275).

Almost surely, 2^74199438 is an apocalyptic number.

74199438 is an abundant number, since it is smaller than the sum of its proper divisors (87471162).

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

74199438 is a wasteful number, since it uses less digits than its factorization.

74199438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23216 (or 23213 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 74199438 is about 8613.9095653484. The cubic root of 74199438 is about 420.2104727404.

The spelling of 74199438 in words is "seventy-four million, one hundred ninety-nine thousand, four hundred thirty-eight".