801546440 has 16 divisors (see below), whose sum is σ = 1803479580. Its totient is φ = 320618560.

The previous prime is 801546437. The next prime is 801546443. The reversal of 801546440 is 44645108.

It is an interprime number because it is at equal distance from previous prime (801546437) and next prime (801546443).

It can be written as a sum of positive squares in 2 ways, for example, as 800550436 + 996004 = 28294^2 + 998^2 .

It is a junction number, because it is equal to n+sod(n) for n = 801546397 and 801546406.

It is not an unprimeable number, because it can be changed into a prime (801546443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10019291 + ... + 10019370.

Almost surely, 2^801546440 is an apocalyptic number.

It is an amenable number.

801546440 is an abundant number, since it is smaller than the sum of its proper divisors (1001933140).

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

801546440 is a wasteful number, since it uses less digits than its factorization.

801546440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20038672 (or 20038668 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 801546440 is about 28311.5955043159. The cubic root of 801546440 is about 928.9155432635.

The spelling of 801546440 in words is "eight hundred one million, five hundred forty-six thousand, four hundred forty".