40142034 has 32 divisors (see below), whose sum is σ = 91385280. Its totient is φ = 13053600.

The previous prime is 40142029. The next prime is 40142057. The reversal of 40142034 is 43024104.

It is a super-2 number, since 2×40142034² = 3222765787314312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40141998 and 40142016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6852 + ... + 11279.

It is an arithmetic number, because the mean of its divisors is an integer number (2855790).

Almost surely, 2^40142034 is an apocalyptic number.

40142034 is an abundant number, since it is smaller than the sum of its proper divisors (51243246).

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

40142034 is a wasteful number, since it uses less digits than its factorization.

40142034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18183 (or 18177 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40142034 is about 6335.7741437018. The cubic root of 40142034 is about 342.3995023667.

Adding to 40142034 its reverse (43024104), we get a palindrome (83166138).

The spelling of 40142034 in words is "forty million, one hundred forty-two thousand, thirty-four".