40048398 has 64 divisors (see below), whose sum is σ = 97070400. Its totient is φ = 12165120.

The previous prime is 40048397. The next prime is 40048399. The reversal of 40048398 is 89384004.

It is an interprime number because it is at equal distance from previous prime (40048397) and next prime (40048399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40048397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62158 + ... + 62798.

It is an arithmetic number, because the mean of its divisors is an integer number (1516725).

Almost surely, 2^40048398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40048398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48535200).

40048398 is an abundant number, since it is smaller than the sum of its proper divisors (57022002).

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

40048398 is a wasteful number, since it uses less digits than its factorization.

40048398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40048398 is about 6328.3803615143. The cubic root of 40048398 is about 342.1330661021.

The spelling of 40048398 in words is "forty million, forty-eight thousand, three hundred ninety-eight".