1362561040 has 40 divisors (see below), whose sum is σ = 3197038680. Its totient is φ = 540020736.

The previous prime is 1362561019. The next prime is 1362561043. The reversal of 1362561040 is 401652631.

It can be written as a sum of positive squares in 4 ways, for example, as 30603024 + 1331958016 = 5532^2 + 36496^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1362561043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69409 + ... + 86848.

It is an arithmetic number, because the mean of its divisors is an integer number (79925967).

Almost surely, 2^1362561040 is an apocalyptic number.

1362561040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1362561040 is an abundant number, since it is smaller than the sum of its proper divisors (1834477640).

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

1362561040 is a wasteful number, since it uses less digits than its factorization.

1362561040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156379 (or 156373 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1362561040 is about 36912.8844714146. The cubic root of 1362561040 is about 1108.6266704805.

The spelling of 1362561040 in words is "one billion, three hundred sixty-two million, five hundred sixty-one thousand, forty".