1401464736 has 72 divisors (see below), whose sum is σ = 4554766944. Its totient is φ = 400417920.

The previous prime is 1401464723. The next prime is 1401464749. The reversal of 1401464736 is 6374641041.

1401464736 is a `hidden beast` number, since 1 + 4 + 0 + 1 + 4 + 647 + 3 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1401464723) and next prime (1401464749).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1401464736.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345570 + ... + 349601.

It is an arithmetic number, because the mean of its divisors is an integer number (63260652).

Almost surely, 2^1401464736 is an apocalyptic number.

1401464736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1401464736 is an abundant number, since it is smaller than the sum of its proper divisors (3153302208).

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

1401464736 is a wasteful number, since it uses less digits than its factorization.

1401464736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695194 (or 695183 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1401464736 is about 37436.1421089300. The cubic root of 1401464736 is about 1119.0789451403.

The spelling of 1401464736 in words is "one billion, four hundred one million, four hundred sixty-four thousand, seven hundred thirty-six".