61470340 has 12 divisors (see below), whose sum is σ = 129087756. Its totient is φ = 24588128.

The previous prime is 61470337. The next prime is 61470347. The reversal of 61470340 is 4307416.

It can be written as a sum of positive squares in 2 ways, for example, as 42928704 + 18541636 = 6552^2 + 4306^2 .

It is not an unprimeable number, because it can be changed into a prime (61470347) 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, 1536739 + ... + 1536778.

It is an arithmetic number, because the mean of its divisors is an integer number (10757313).

Almost surely, 2^61470340 is an apocalyptic number.

It is an amenable number.

61470340 is an abundant number, since it is smaller than the sum of its proper divisors (67617416).

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

61470340 is a wasteful number, since it uses less digits than its factorization.

61470340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073526 (or 3073524 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 61470340 is about 7840.3022900906. The cubic root of 61470340 is about 394.6588733522.

Adding to 61470340 its reverse (4307416), we get a palindrome (65777756).

The spelling of 61470340 in words is "sixty-one million, four hundred seventy thousand, three hundred forty".