1400001004 has 24 divisors (see below), whose sum is σ = 2495289888. Its totient is φ = 687146880.

The previous prime is 1400000999. The next prime is 1400001037. The reversal of 1400001004 is 4001000041.

It is a super-2 number, since 2×1400001004² = 3920005622402016032, which contains 22 as substring.

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, 55594 + ... + 76750.

It is an arithmetic number, because the mean of its divisors is an integer number (103970412).

Almost surely, 2^1400001004 is an apocalyptic number.

It is an amenable number.

1400001004 is a deficient number, since it is larger than the sum of its proper divisors (1095288884).

1400001004 is a wasteful number, since it uses less digits than its factorization.

1400001004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21465 (or 21463 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1400001004 is about 37416.5872842514. The cubic root of 1400001004 is about 1118.6892095013.

Adding to 1400001004 its reverse (4001000041), we get a palindrome (5401001045).

The spelling of 1400001004 in words is "one billion, four hundred million, one thousand, four".