40051542 has 16 divisors (see below), whose sum is σ = 80635392. Its totient is φ = 13261800.

The previous prime is 40051519. The next prime is 40051559. The reversal of 40051542 is 24515004.

It is a super-3 number, since 3×40051542³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21198 + ... + 23009.

It is an arithmetic number, because the mean of its divisors is an integer number (5039712).

Almost surely, 2^40051542 is an apocalyptic number.

40051542 is an abundant number, since it is smaller than the sum of its proper divisors (40583850).

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

40051542 is a wasteful number, since it uses less digits than its factorization.

40051542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44363.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40051542 is about 6328.6287614301. The cubic root of 40051542 is about 342.1420189214.

Adding to 40051542 its reverse (24515004), we get a palindrome (64566546).

The spelling of 40051542 in words is "forty million, fifty-one thousand, five hundred forty-two".