407442642 has 8 divisors (see below), whose sum is σ = 814885296. Its totient is φ = 135814212.

The previous prime is 407442571. The next prime is 407442643. The reversal of 407442642 is 246244704.

It is a sphenic number, since it is the product of 3 distinct primes.

407442642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (407442643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33953548 + ... + 33953559.

It is an arithmetic number, because the mean of its divisors is an integer number (101860662).

Almost surely, 2^407442642 is an apocalyptic number.

407442642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

407442642 is a wasteful number, since it uses less digits than its factorization.

407442642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67907112.

The product of its (nonzero) digits is 43008, while the sum is 33.

The square root of 407442642 is about 20185.2084953314. The cubic root of 407442642 is about 741.3480674310.

The spelling of 407442642 in words is "four hundred seven million, four hundred forty-two thousand, six hundred forty-two".