40025742 has 32 divisors (see below), whose sum is σ = 87177600. Its totient is φ = 12202848.

The previous prime is 40025729. The next prime is 40025747. The reversal of 40025742 is 24752004.

40025742 is a modest number, since divided by 5742 gives 4002 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025747) 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, 2748 + ... + 9359.

It is an arithmetic number, because the mean of its divisors is an integer number (2724300).

Almost surely, 2^40025742 is an apocalyptic number.

40025742 is an abundant number, since it is smaller than the sum of its proper divisors (47151858).

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

40025742 is a wasteful number, since it uses less digits than its factorization.

40025742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12160.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 40025742 is about 6326.5900768107. The cubic root of 40025742 is about 342.0685372713.

Adding to 40025742 its reverse (24752004), we get a palindrome (64777746).

The spelling of 40025742 in words is "forty million, twenty-five thousand, seven hundred forty-two".