1415650640 has 20 divisors (see below), whose sum is σ = 3291387924. Its totient is φ = 566260224.

The previous prime is 1415650603. The next prime is 1415650679. The reversal of 1415650640 is 460565141.

It can be written as a sum of positive squares in 2 ways, for example, as 520204864 + 895445776 = 22808^2 + 29924^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1415650597 and 1415650606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8847737 + ... + 8847896.

Almost surely, 2^1415650640 is an apocalyptic number.

1415650640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1415650640 is an abundant number, since it is smaller than the sum of its proper divisors (1875737284).

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

1415650640 is a wasteful number, since it uses less digits than its factorization.

1415650640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17695646 (or 17695640 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1415650640 is about 37625.1330894656. The cubic root of 1415650640 is about 1122.8421226882.

The spelling of 1415650640 in words is "one billion, four hundred fifteen million, six hundred fifty thousand, six hundred forty".