1040667732 has 72 divisors (see below), whose sum is σ = 2872920960. Its totient is φ = 315685440.

The previous prime is 1040667713. The next prime is 1040667739. The reversal of 1040667732 is 2377660401.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040667739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17569 + ... + 48887.

It is an arithmetic number, because the mean of its divisors is an integer number (39901680).

Almost surely, 2^1040667732 is an apocalyptic number.

1040667732 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 1040667732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436460480).

1040667732 is an abundant number, since it is smaller than the sum of its proper divisors (1832253228).

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

1040667732 is a wasteful number, since it uses less digits than its factorization.

1040667732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31413 (or 31408 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 1040667732 is about 32259.3820771570. The cubic root of 1040667732 is about 1013.3761904293.

The spelling of 1040667732 in words is "one billion, forty million, six hundred sixty-seven thousand, seven hundred thirty-two".