1401564634 has 8 divisors (see below), whose sum is σ = 2118901248. Its totient is φ = 695264220.

The previous prime is 1401564611. The next prime is 1401564683. The reversal of 1401564634 is 4364651041.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1401564634.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2758732 + ... + 2759239.

It is an arithmetic number, because the mean of its divisors is an integer number (264862656).

Almost surely, 2^1401564634 is an apocalyptic number.

1401564634 is a deficient number, since it is larger than the sum of its proper divisors (717336614).

1401564634 is a wasteful number, since it uses less digits than its factorization.

1401564634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518100.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1401564634 is about 37437.4763305434. The cubic root of 1401564634 is about 1119.1055342485.

The spelling of 1401564634 in words is "one billion, four hundred one million, five hundred sixty-four thousand, six hundred thirty-four".