40142652 has 48 divisors (see below), whose sum is σ = 103227264. Its totient is φ = 12040000.

The previous prime is 40142651. The next prime is 40142671. The reversal of 40142652 is 25624104.

It is a super-2 number, since 2×40142652² = 3222865019186208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11827 + ... + 14837.

It is an arithmetic number, because the mean of its divisors is an integer number (2150568).

Almost surely, 2^40142652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40142652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51613632).

40142652 is an abundant number, since it is smaller than the sum of its proper divisors (63084612).

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

40142652 is a wasteful number, since it uses less digits than its factorization.

40142652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 3128 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40142652 is about 6335.8229141920. The cubic root of 40142652 is about 342.4012594758.

Adding to 40142652 its reverse (25624104), we get a palindrome (65766756).

It can be divided in two parts, 4014 and 2652, that added together give a palindrome (6666).

The spelling of 40142652 in words is "forty million, one hundred forty-two thousand, six hundred fifty-two".