1405988832 has 96 divisors (see below), whose sum is σ = 3784983552. Its totient is φ = 456779264.

The previous prime is 1405988777. The next prime is 1405988867. The reversal of 1405988832 is 2388895041.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1429813 + ... + 1430795.

It is an arithmetic number, because the mean of its divisors is an integer number (39426912).

Almost surely, 2^1405988832 is an apocalyptic number.

1405988832 is a gapful number since it is divisible by the number (12) 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 1405988832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1892491776).

1405988832 is an abundant number, since it is smaller than the sum of its proper divisors (2378994720).

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

1405988832 is a wasteful number, since it uses less digits than its factorization.

1405988832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 1405988832 is about 37496.5175983050. The cubic root of 1405988832 is about 1120.2818253369.

The spelling of 1405988832 in words is "one billion, four hundred five million, nine hundred eighty-eight thousand, eight hundred thirty-two".