1025446240 has 96 divisors (see below), whose sum is σ = 2981724480. Its totient is φ = 324532224.

The previous prime is 1025446183. The next prime is 1025446243. The reversal of 1025446240 is 426445201.

It is a super-2 number, since 2×1025446240² = 2103079982260275200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1025446199 and 1025446208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025446243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20655 + ... + 49774.

It is an arithmetic number, because the mean of its divisors is an integer number (31059630).

Almost surely, 2^1025446240 is an apocalyptic number.

1025446240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025446240 is an abundant number, since it is smaller than the sum of its proper divisors (1956278240).

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

1025446240 is a wasteful number, since it uses less digits than its factorization.

1025446240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70464 (or 70456 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1025446240 is about 32022.5895267700. The cubic root of 1025446240 is about 1008.4111344624.

The spelling of 1025446240 in words is "one billion, twenty-five million, four hundred forty-six thousand, two hundred forty".