1024622640 has 240 divisors, whose sum is σ = 3685264128. Its totient is φ = 254214144.

The previous prime is 1024622639. The next prime is 1024622689. The reversal of 1024622640 is 462264201.

1024622640 is a `hidden beast` number, since 10 + 2 + 4 + 6 + 2 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1186849 + ... + 1187711.

Almost surely, 2^1024622640 is an apocalyptic number.

1024622640 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 1024622640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842632064).

1024622640 is an abundant number, since it is smaller than the sum of its proper divisors (2660641488).

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

1024622640 is a wasteful number, since it uses less digits than its factorization.

1024622640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1024622640 is about 32009.7272715654. The cubic root of 1024622640 is about 1008.1410894723.

Adding to 1024622640 its reverse (462264201), we get a palindrome (1486886841).

The spelling of 1024622640 in words is "one billion, twenty-four million, six hundred twenty-two thousand, six hundred forty".