61470780 has 48 divisors (see below), whose sum is σ = 196707840. Its totient is φ = 14050368.

The previous prime is 61470763. The next prime is 61470781. The reversal of 61470780 is 8707416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61470781) 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, 72760 + ... + 73599.

It is an arithmetic number, because the mean of its divisors is an integer number (4098080).

Almost surely, 2^61470780 is an apocalyptic number.

61470780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61470780 is an abundant number, since it is smaller than the sum of its proper divisors (135237060).

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

61470780 is a wasteful number, since it uses less digits than its factorization.

61470780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146378 (or 146376 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 61470780 is about 7840.3303501830. The cubic root of 61470780 is about 394.6598149960.

The spelling of 61470780 in words is "sixty-one million, four hundred seventy thousand, seven hundred eighty".