1024406840 has 32 divisors (see below), whose sum is σ = 2305920960. Its totient is φ = 409584000.

The previous prime is 1024406839. The next prime is 1024406861. The reversal of 1024406840 is 486044201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124865 + ... + 132815.

It is an arithmetic number, because the mean of its divisors is an integer number (72060030).

Almost surely, 2^1024406840 is an apocalyptic number.

1024406840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1024406840 is an abundant number, since it is smaller than the sum of its proper divisors (1281514120).

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

1024406840 is a wasteful number, since it uses less digits than its factorization.

1024406840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11183 (or 11179 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 1024406840 is about 32006.3562437213. The cubic root of 1024406840 is about 1008.0703082520.

The spelling of 1024406840 in words is "one billion, twenty-four million, four hundred six thousand, eight hundred forty".