440452642 has 32 divisors (see below), whose sum is σ = 800208000. Its totient is φ = 177614208.

The previous prime is 440452633. The next prime is 440452657. The reversal of 440452642 is 246254044.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34078 + ... + 45190.

It is an arithmetic number, because the mean of its divisors is an integer number (25006500).

Almost surely, 2^440452642 is an apocalyptic number.

440452642 is a deficient number, since it is larger than the sum of its proper divisors (359755358).

440452642 is a wasteful number, since it uses less digits than its factorization.

440452642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11290.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 440452642 is about 20986.9636203049. The cubic root of 440452642 is about 760.8512173139.

The spelling of 440452642 in words is "four hundred forty million, four hundred fifty-two thousand, six hundred forty-two".