1036994640 has 160 divisors (see below), whose sum is σ = 3620339712. Its totient is φ = 243264000.

The previous prime is 1036994633. The next prime is 1036994653. The reversal of 1036994640 is 464996301.

1036994640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1036994592 and 1036994601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75505 + ... + 88175.

Almost surely, 2^1036994640 is an apocalyptic number.

1036994640 is a gapful number since it is divisible by the number (10) 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 1036994640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810169856).

1036994640 is an abundant number, since it is smaller than the sum of its proper divisors (2583345072).

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

1036994640 is a wasteful number, since it uses less digits than its factorization.

1036994640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12729 (or 12723 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 1036994640 is about 32202.4011527091. The cubic root of 1036994640 is about 1012.1825299447.

The spelling of 1036994640 in words is "one billion, thirty-six million, nine hundred ninety-four thousand, six hundred forty".