1442209990 has 16 divisors (see below), whose sum is σ = 2795668848. Its totient is φ = 532508256.

The previous prime is 1442209969. The next prime is 1442210039. The reversal of 1442209990 is 999022441.

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, 5546832 + ... + 5547091.

It is an arithmetic number, because the mean of its divisors is an integer number (174729303).

Almost surely, 2^1442209990 is an apocalyptic number.

1442209990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442209990 is a deficient number, since it is larger than the sum of its proper divisors (1353458858).

1442209990 is a wasteful number, since it uses less digits than its factorization.

1442209990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093943.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1442209990 is about 37976.4399332007. The cubic root of 1442209990 is about 1129.8206283278.

The spelling of 1442209990 in words is "one billion, four hundred forty-two million, two hundred nine thousand, nine hundred ninety".