361520040 has 96 divisors (see below), whose sum is σ = 1261651680. Its totient is φ = 82631808.

The previous prime is 361519999. The next prime is 361520051. The reversal of 361520040 is 40025163.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 361519989 and 361520016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24862 + ... + 36621.

It is an arithmetic number, because the mean of its divisors is an integer number (13142205).

Almost surely, 2^361520040 is an apocalyptic number.

361520040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

361520040 is an abundant number, since it is smaller than the sum of its proper divisors (900131640).

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

361520040 is a wasteful number, since it uses less digits than its factorization.

361520040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61511 (or 61500 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 361520040 is about 19013.6803381144. The cubic root of 361520040 is about 712.3784809686.

The spelling of 361520040 in words is "three hundred sixty-one million, five hundred twenty thousand, forty".