1046638632 has 96 divisors (see below), whose sum is σ = 2868415200. Its totient is φ = 318060288.

The previous prime is 1046638631. The next prime is 1046638669. The reversal of 1046638632 is 2368366401.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1046638631) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 335094 + ... + 338202.

It is an arithmetic number, because the mean of its divisors is an integer number (29879325).

Almost surely, 2^1046638632 is an apocalyptic number.

1046638632 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 1046638632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434207600).

1046638632 is an abundant number, since it is smaller than the sum of its proper divisors (1821776568).

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

1046638632 is a wasteful number, since it uses less digits than its factorization.

1046638632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 1046638632 is about 32351.7948806554. The cubic root of 1046638632 is about 1015.3105998567.

The spelling of 1046638632 in words is "one billion, forty-six million, six hundred thirty-eight thousand, six hundred thirty-two".