40142274 has 8 divisors (see below), whose sum is σ = 80284560. Its totient is φ = 13380756.

The previous prime is 40142261. The next prime is 40142281. The reversal of 40142274 is 47224104.

It is a sphenic number, since it is the product of 3 distinct primes.

40142274 is an admirable number.

It is a super-2 number, since 2×40142274² = 3222804323782152, which contains 22 as substring.

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, 3345184 + ... + 3345195.

It is an arithmetic number, because the mean of its divisors is an integer number (10035570).

Almost surely, 2^40142274 is an apocalyptic number.

40142274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40142274 is a wasteful number, since it uses less digits than its factorization.

40142274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690384.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 40142274 is about 6335.7930837426. The cubic root of 40142274 is about 342.4001847413.

Adding to 40142274 its reverse (47224104), we get a palindrome (87366378).

The spelling of 40142274 in words is "forty million, one hundred forty-two thousand, two hundred seventy-four".