4465425640 has 32 divisors (see below), whose sum is σ = 10820071080. Its totient is φ = 1648772352.

The previous prime is 4465425637. The next prime is 4465425667. The reversal of 4465425640 is 465245644.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1393827556 + 3071598084 = 37334^2 + 55422^2 .

It is a super-2 number, since 2×4465425640² = 39880052292738819200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4465425593 and 4465425602.

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, 4293159 + ... + 4294198.

Almost surely, 2^4465425640 is an apocalyptic number.

4465425640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4465425640 is an abundant number, since it is smaller than the sum of its proper divisors (6354645440).

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

4465425640 is a wasteful number, since it uses less digits than its factorization.

4465425640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8587381 (or 8587377 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The square root of 4465425640 is about 66823.8403565674. The cubic root of 4465425640 is about 1646.7245262242.

The spelling of 4465425640 in words is "four billion, four hundred sixty-five million, four hundred twenty-five thousand, six hundred forty".