1420401004 has 24 divisors (see below), whose sum is σ = 2748827088. Its totient is φ = 636791040.

The previous prime is 1420400999. The next prime is 1420401011. The reversal of 1420401004 is 4001040241.

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, 217897 + ... + 224320.

It is an arithmetic number, because the mean of its divisors is an integer number (114534462).

Almost surely, 2^1420401004 is an apocalyptic number.

It is an amenable number.

1420401004 is a deficient number, since it is larger than the sum of its proper divisors (1328426084).

1420401004 is a wasteful number, since it uses less digits than its factorization.

1420401004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442305 (or 442303 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1420401004 is about 37688.2077578651. The cubic root of 1420401004 is about 1124.0966586075.

Adding to 1420401004 its reverse (4001040241), we get a palindrome (5421441245).

The spelling of 1420401004 in words is "one billion, four hundred twenty million, four hundred one thousand, four".