361226540 has 48 divisors (see below), whose sum is σ = 804922272. Its totient is φ = 135699456.

The previous prime is 361226533. The next prime is 361226549. The reversal of 361226540 is 45622163.

It is a super-2 number, since 2×361226540² = 260969226400743200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (361226549) 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, 221207 + ... + 222833.

It is an arithmetic number, because the mean of its divisors is an integer number (16769214).

Almost surely, 2^361226540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 361226540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402461136).

361226540 is an abundant number, since it is smaller than the sum of its proper divisors (443695732).

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

361226540 is a wasteful number, since it uses less digits than its factorization.

361226540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2304 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 361226540 is about 19005.9606439664. The cubic root of 361226540 is about 712.1856473144.

The spelling of 361226540 in words is "three hundred sixty-one million, two hundred twenty-six thousand, five hundred forty".