40658142 has 48 divisors (see below), whose sum is σ = 96928272. Its totient is φ = 11329920.

The previous prime is 40658141. The next prime is 40658173. The reversal of 40658142 is 24185604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40658141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10368 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (2019339).

Almost surely, 2^40658142 is an apocalyptic number.

40658142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40658142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48464136).

40658142 is an abundant number, since it is smaller than the sum of its proper divisors (56270130).

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

40658142 is a wasteful number, since it uses less digits than its factorization.

40658142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433 (or 3426 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 40658142 is about 6376.3737343415. The cubic root of 40658142 is about 343.8606734768.

The spelling of 40658142 in words is "forty million, six hundred fifty-eight thousand, one hundred forty-two".