465155240 has 128 divisors (see below), whose sum is σ = 1184440320. Its totient is φ = 162950400.

The previous prime is 465155221. The next prime is 465155267. The reversal of 465155240 is 42551564.

It is a junction number, because it is equal to n+sod(n) for n = 465155197 and 465155206.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1716305 + ... + 1716575.

It is an arithmetic number, because the mean of its divisors is an integer number (9253440).

Almost surely, 2^465155240 is an apocalyptic number.

465155240 is a gapful number since it is divisible by the number (40) 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 465155240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592220160).

465155240 is an abundant number, since it is smaller than the sum of its proper divisors (719285080).

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

465155240 is a wasteful number, since it uses less digits than its factorization.

465155240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 465155240 is about 21567.4578937806. The cubic root of 465155240 is about 774.8172944264.

The spelling of 465155240 in words is "four hundred sixty-five million, one hundred fifty-five thousand, two hundred forty".