1065401904 has 160 divisors (see below), whose sum is σ = 3237491200. Its totient is φ = 301771008.

The previous prime is 1065401903. The next prime is 1065401957. The reversal of 1065401904 is 4091045601.

It is a happy number.

1065401904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1065401904² = 2270162434093650432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065401903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2683434 + ... + 2683830.

It is an arithmetic number, because the mean of its divisors is an integer number (20234320).

Almost surely, 2^1065401904 is an apocalyptic number.

1065401904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065401904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618745600).

1065401904 is an abundant number, since it is smaller than the sum of its proper divisors (2172089296).

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

1065401904 is a wasteful number, since it uses less digits than its factorization.

1065401904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1065401904 is about 32640.4948491900. The cubic root of 1065401904 is about 1021.3419169920.

The spelling of 1065401904 in words is "one billion, sixty-five million, four hundred one thousand, nine hundred four".