1406035644 has 96 divisors (see below), whose sum is σ = 3798574080. Its totient is φ = 401096448.

The previous prime is 1406035639. The next prime is 1406035679. The reversal of 1406035644 is 4465306041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134262 + ... + 144354.

It is an arithmetic number, because the mean of its divisors is an integer number (39568480).

Almost surely, 2^1406035644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1406035644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1899287040).

1406035644 is an abundant number, since it is smaller than the sum of its proper divisors (2392538436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406035644 is a wasteful number, since it uses less digits than its factorization.

1406035644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179 (or 10177 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 1406035644 is about 37497.1418110767. The cubic root of 1406035644 is about 1120.2942583543.

The spelling of 1406035644 in words is "one billion, four hundred six million, thirty-five thousand, six hundred forty-four".