40551342 has 16 divisors (see below), whose sum is σ = 87341520. Its totient is φ = 12477312.

The previous prime is 40551331. The next prime is 40551347. The reversal of 40551342 is 24315504.

It is a super-2 number, since 2×40551342² = 3288822676001928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40551347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259867 + ... + 260022.

It is an arithmetic number, because the mean of its divisors is an integer number (5458845).

Almost surely, 2^40551342 is an apocalyptic number.

40551342 is an abundant number, since it is smaller than the sum of its proper divisors (46790178).

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

40551342 is a wasteful number, since it uses less digits than its factorization.

40551342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519907.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 40551342 is about 6367.9935615545. The cubic root of 40551342 is about 343.5593273363.

Adding to 40551342 its reverse (24315504), we get a palindrome (64866846).

The spelling of 40551342 in words is "forty million, five hundred fifty-one thousand, three hundred forty-two".