40251342 has 48 divisors (see below), whose sum is σ = 86647680. Its totient is φ = 12461952.

The previous prime is 40251319. The next prime is 40251353. The reversal of 40251342 is 24315204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240943 + ... + 241109.

It is an arithmetic number, because the mean of its divisors is an integer number (1805160).

Almost surely, 2^40251342 is an apocalyptic number.

40251342 is an abundant number, since it is smaller than the sum of its proper divisors (46396338).

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

40251342 is a wasteful number, since it uses less digits than its factorization.

40251342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40251342 is about 6344.3945337597. The cubic root of 40251342 is about 342.7100088420.

Adding to 40251342 its reverse (24315204), we get a palindrome (64566546).

The spelling of 40251342 in words is "forty million, two hundred fifty-one thousand, three hundred forty-two".