31448398 has 8 divisors (see below), whose sum is σ = 48062808. Its totient is φ = 15427464.

The previous prime is 31448381. The next prime is 31448413. The reversal of 31448398 is 89384413.

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 31448398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148236 + ... + 148447.

It is an arithmetic number, because the mean of its divisors is an integer number (6007851).

Almost surely, 2^31448398 is an apocalyptic number.

31448398 is a deficient number, since it is larger than the sum of its proper divisors (16614410).

31448398 is a wasteful number, since it uses less digits than its factorization.

31448398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296738.

The product of its digits is 82944, while the sum is 40.

The square root of 31448398 is about 5607.8871243990. The cubic root of 31448398 is about 315.6454323014.

The spelling of 31448398 in words is "thirty-one million, four hundred forty-eight thousand, three hundred ninety-eight".